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meas·ure·ment  (mzhr-mnt)
1. The act of measuring or the process of being measured.
2. A system of measuring: measurement in miles.
3. The dimension, quantity, or capacity determined by measuring: the measurements of a room.

Conversion From U.S. Customary to Metric units

When You KnowMultiply ByTo Find
fluid ounces29.57milliliters
pints (liquid)0.47liters (liquid)
quarts (liquid)0.95liters (liquid)
cubic feet0.028cubic meters
cubic yards0.76cubic meters
short tons (2,000 lbs)0.91metric tons
square inches6.45square centimeters
square feet0.09square meters
square yards0.84square meters
square miles2.60square kilometers

From Metric to U.S. Customary Units

When You KnowMultiply ByTo Find
 0.03fluid ounces
liters (liquid)1.06quarts (liquid)
 2.12pints (liquid)
cubic meters35.32cubic feet
 1.35cubic yards
metric ton (1,000 kg)1.10short ton
square centimeters0.16square inches
square meters1.20square yards
square kilometers0.39square miles

Temperature Conversion Between Celsius and Fahrenheit

°C = (°F - 32) ÷ 1.8
°F = (°C × 1.8) + 32

Boiling point of water212°100°
A very hot day104°40°
Normal body temperature98.6°37°
A warm day86°30°
A mild day68°20°
A cool day50°10°
Freezing point of water32°
Lowest temperature Gabriel Fahrenheit could obtain by mixing salt and ice-17.8°

U.S. Customary System: Length

UnitRelation to Other U.S. Customary UnitsMetric Equivalent
inch1/12 foot2.54 centimeters
foot12 inches or 1/3 yard0.3048 meter
yard36 inches or 3 feet0.9144 meter
rod16 1/2 feet or 5 1/2 yards5.0292 meters
furlong220 yards or 1/8 mile0.2012 kilometer
mile (statute)5,280 feet or 1,760 yards1.6093 kilometers
mile (nautical)2,025 yards1.852 kilometers

U.S. Customary System: Volume or Capacity (Liquid Measure)

UnitRelation to Other U.S. Customary UnitsMetric Equivalent
ounce1/16 pint29.574 milliliters
gill4 ounces0.1183 liter
pint16 ounces0.4732 liter
quart2 pints or 1/4 gallon0.9463 liter
gallon128 ounces or 8 pints3.7853 liters
(wine)31 1/2 gallons119.24 liters
(beer)36 gallons136.27 liters
(oil)42 gallons158.99 liters

U.S. Customary System: Volume or Capacity (Dry Measure)

UnitRelation to Other U.S. Customary UnitsMetric Equivalent
pint1/2 quart0.5506 liter
quart2 pints1.1012 liters
peck8 quarts or 1/4 bushel8.8098 liters
bucket2 pecks17.620 liters
bushel2 buckets or 4 pecks35.239 liters

U.S. Customary System: Weight

UnitRelation to Other U.S. Customary UnitsMetric Equivalent
grain1/7000 pound64.799 milligrams
dram1/16 ounce1.7718 grams
ounce16 drams28.350 grams
pound16 ounces453.6 grams
ton (short)2,000 pounds907.18 kilograms
ton (long)2,240 pounds1,016.0 kilograms

U.S. Customary System: Geographic Area

UnitRelation to Other U.S. Customary UnitsMetric Equivalent
acre4,840 square yards4,047 square meters

Cooking Measures

UnitRelation to Other Cooking MeasuresConversion to Metric Units
drop1/76 teaspoon0.0649 milliliter
teaspoon76 drops or 1/3 tablespoon4.9288 milliliters
tablespoon3 teaspoons14.786 milliliters
cup16 tablespoons or 1/2 pint0.2366 liter
pint2 cups0.4732 liter
quart4 cups or 2 pints0.9463 liter

British Imperial System: Volume or Capacity (Liquid Measure)

UnitRelation to Other British Imperial UnitsConversion to U.S. Customary UnitsConversion to Metric Units
pint1/2 quart1.201 pints0.5683 liter
quart2 pints or 1/4 gallon1.201 quarts1.137 liters
gallon8 pints or 4 quarts1.201 gallons4.546 liters

British Imperial System: Volume or Capacity (Dry Measure)

UnitRelation to Other British Imperial UnitsConversion to U.S. Customary UnitsConversion to Metric Units
peck1/4 bushel1.0320 pecks9.092 liters
bushel4 pecks1.0320 bushels36.369 liters

Apothecary Weights

UnitRelation to Other Apothecary UnitsConversion to U.S. Customary UnitsConversion to Metric Units
grain160 dram or 1/5760 poundequal to the U.S. Customary grain64.799 milligrams
dram60 grains or 1/8 ounce2.1943 drams3.8879 grams
ounce8 drams1.0971 ounces31.1035 grams
pound12 ounces or 96 drams0.8232 pound373.242 grams

Units of the International System

The International System (abbreviated SI, for Systeme International, the French name for the system) was adopted in 1960 by the 11th General Conference on Weights and Measures. An expanded and modified version of the metric system, International System addresses the needs of modern science for additional and more accurate units of measurement. The key features of the International System are decimalization, a system of prefixes, and a standard defined in terms of an invariable physical measure.

Base Units

The International System has base units from which all others in the system are derived. The standards for the base units, except for the kilogram, are defined by unchanging and reproducible physical occurences. For example, the meter is defined as the distance traveled by light in a vacuum in 1/299,792,458 of a second. The standard for the kilogram is a platinum-iridium cylinder kept at the International Bureau of Weights and Standards in Sèvres, France.

UnitQuantity Symbol
meter length m
kilogram mass kg
second time s
ampere electric current A
kelvin temperature K
mole amount of matter mol
candela luminous intensity cd

Supplementary Units

The International System uses two supplementary units that are based on abstract geometrical concepts rather than physical standards.

radian plane angles rad
steradian solid angles sr


A multiple of a unit in the International System is formed by adding a prefix to the name of that unit. The prefixes change the magnitude of the unit by orders of ten from 1024 to 10-24.

PrefixSymbolMultiplying Factor
yotta- Y 1024 = 1,000,000,000,000,000,000,000,000
zetta- Z 1021 = 1,000,000,000,000,000,000,000
exa- E 1018 = 1,000,000,000,000,000,000
peta- P1015 = 1,000,000,000,000,000
tera- T 1012 = 1,000,000,000,000
giga- G 109 = 1,000,000,000
mega- M 106 = 1,000,000
kilo- K 103 = 1,000
hecto- h 102 = 100
deca- da 10 = 10
deci- d 10-1 = 0.1
centi- c 10-2 = 0.01
milli- m 10-3 = 0.001
micro- 10-6 = 0.000,001
nano- n 10-9 = 0.000,000,001
pico- p 10-12 = 0.000,000,000,001
femto- f 10-15 = 0.000,000,000,000,001
atto- a 10-18 = 0.000,000,000,000,000,001
zepto- z 10-21 = 0.000,000,000,000,000,000,001
yocto- y 10-24 = 0.000,000,000,000,000,000,000,001

Additional Units

Listed below are a few of the non-SI units that are commonly used with the International System.

angstrom (= 10-10m) length Å
electron-volt (= 0.160 aJ) energy eV
hectare (= 10,000 m2) land area ha
liter (= 1.0dm3)volume or capacity l
standard atmosphere (= 101.3 kPa) pressure atm

Derived Units

Most of the units in the International System are derived units, that is units defined in terms of base units and supplementary units. Derived units can be divided into two groups - those that have a special name and symbol, and those that do not.

Without Names and Symbols
Measure ofDerivation
acceleration m/s2
angular acceleration rad/s2
angular velocity rad/s
density kg/m3
electric field strength V/m
luminance cd/m2
magnetic field strength A/m
velocity m/s

With Names and Symbols
UnitMeasure ofSymbolDerivation
coulomb electric charge C A·s
farad electric capacitance F A·s/V
henry inductance H V·s/A
hertz frequency Hz cycles/s
joule quantity of energy J N·m
lumen flux of light lm cd·sr
lux illumination lx lm/m2
newton force N kg·m/s2
ohm electric resistance V/A
pascal pressure Pa N/m2
tesla magnetic flux density T Wb/m2
volt voltage V W/A
watt power W J/s
weber magnetic flux Wb V·s

Copyright © 2000 by Houghton Mifflin Company

measurement (ˈmɛʒəmənt)
1. the act or process of measuring
2. an amount, extent, or size determined by measuring
3. a system of measures based on a particular standard

meas•ure•ment (ˈmɛʒ ər mənt)

1. the act of measuring.
2. a measured dimension.
3. extent, size, etc., ascertained by measuring.
4. a system of measuring or measures: liquid measurement.

measurement  (mzhr-mnt)
A method of determining quantity, capacity, or dimension. Several systems of measurement exist, each one comprising units whose amounts have been arbitrarily set and agreed upon by specific groups. While the United States Customary System remains the most commonly used system of measurement in the United States, the International System is accepted all over the world as the standard system for use in science.
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See also instruments.

the measurement of the relative amount of acetic acid in a given subtance. — acetimetrical, adj.
Chemistry. the determination of the amount of free acid in a liquid. — acidimeter, n. — acidimetrical, adj.
measurement of pain by means of an algometer.
the measurement of evaporation in the air. — atmidometer, n.
1. the measurement of oneself.
2. the measurement of a part of a figure as a fraction of the total figure’s height. — autometric, adj.
the measurement of distance or lines by means of a stave or staff.
the science of land surveying.
accurate measurement of short intervals of time by means of a chronoscope. — chronoscopic, adj.
the science of measuring the universe.
the measurement of extremely low temperatures, by means of a cryometer.
the measurement of circles.
the measurement by a dosimeter of the dosage of radiation a per-son has received. See also drugs. — dosimetrist, n. — dosimetric, dosimetrical, adj.
measurement of the red blood cells in the blood, by use of an erythrocytometer.
the science of measuring and analyzing gases by means of a eudiometer.
the measurement of fluorescence, or visible radiation, by means of a fluorometer. — fluorometric, adj.
the measurement of the strength of electric currents, by means of a galvanometer. — galvanometric, galvanometrical, adj.
the measurement of the amounts of the gases in a mixture. — gasometer, n. — gasometric, gasometrical, adj.
the practice or theory of measuring angles, especially by means of a goniometer.
the measurement of the dimensions and angles of the planes of salt crystals. — halometer, n.
the practice of measuring the angular distance between stars by means of a heliometer. — heliometric, heliometrical, adj.
the art or science of measuring time. — horometrical, adj.
the measurement of altitude and heights, especially with refer-ence to sea level. — hypsometric, hypsometrical, adj.
the practice and art of determining the strength and coloring power of an indigo solution.
equality of measure. — isometric, isometrical, adj.
the measurement of impurities in the air by means of a konimeter. — konimetric, adj.
1. the measuring and recording of variations in fluid pressure, as blood pressure.
2. the measuring and recording of the angular oscillations of an aircraft in flight, with respect to an axis or axes flxed in space. — kymograph, n. — kymographic, adj.
Rare. an instrument for measuring large objects. See also geography.
1. the act, process, or science of measurement.
2. the branch of geometry dealing with measurement of length, area, or volume. — mensurate, mensurational, adj.
the study and science of measures and weights. — metrologist, n. — metrological, adj.
the measurement of osmotic pressure, or the force a dissolved substance exerts on a semipermeable membrane through which it cannot pass when separated by it from a pure solvent. — osmometric, adj.
the measurement of bones.
the determination or estimation of the quantity of oxide formed on a substance. — oxidimetric, adj.
Obsolete, the realm of geometrical measurements, taken as a whole. — pantometer, n. — pantometric, pantometrical, adj.
the measurement of pressure or compressibility, as with a piezometer. — piezometric, adj.
the measurement of the plasticity of materials, as with a plastometer. — plastometric, adj.
the measurement of the capacity of the lungs. — pulmometer, n.
the measurement of temperatures greater than 1500 degrees Celsius. — pyrometer, n. — pyrometric, pyrometrical, adj.
the measurement of radiant energy by means of a radiometer. — radiometric, adj.
the measurement of electric current, usually with a galvanometer. — rheometric, adj.
a means of surveying in which distances are measured by reading intervals on a graduated rod intercepted by two parallel cross hairs in the telescope of a surveying instrument. — stadia, adj.
1. the process of determining the volume and dimensions of a solid.
2. the process of determining the specific gravity of a liquid. — stereometric, adj.
the measurement of distance, height, elevation, etc., with a tachymeter.
the science or use of the telemeter; long-distance measurement.
the measurement of the turbidity of water or other fluids, as with a turbidimeter. — turbidimetric, adj.
measurement of the specific gravity of urine, by means of an urinometer.
the measurement of the volume of a solid body by means of a volumenometer.
the measurement of the volume of solids, gases, or liquids; volumetric analysis. — volumetric, volumetrical, adj.
the measurement and comparison of the sizes of animals and their parts. — zoometric, adj.

1. 'measurement'

A measurement is a result obtained by measuring something.

Check the measurements carefully.
Every measurement was exact.

2. 'measure'

You do not use 'measurement' to refer to an action taken by a government. The word you use is measure.

Measures had been taken to limit the economic decline.
Day nurseries were started as a war-time measure to allow mothers to work.
Thesaurus Legend:  Synonyms Related Words Antonyms
Noun1.measurement - the act or process of assigning numbers to phenomena according to a rulemeasurement - the act or process of assigning numbers to phenomena according to a rule; "the measurements were carefully done"; "his mental measurings proved remarkably accurate"
activity - any specific behavior; "they avoided all recreational activity"
seismography - the measurement of tremors and shocks and undulatory movements of earthquakes
quantitative analysis, quantitative chemical analysis - chemical analysis to determine the amounts of each element in the substance
actinometry - measuring the intensity of electromagnetic radiation (especially of the sun's rays)
algometry - measuring sensitivity to pain or pressure
anemography - recording anemometrical measurements
anemometry - measuring wind speed and direction
angulation - the precise measurement of angles
anthropometry - measurement and study of the human body and its parts and capacities
arterial blood gases - measurement of the pH level and the oxygen and carbon dioxide concentrations in arterial blood; important in diagnosis of many respiratory diseases
audiometry - measuring sensitivity of hearing
bathymetry, plumbing - measuring the depths of the oceans
calorimetry - measurement of quantities of heat
cephalometry - measurement of human heads
densitometry - measuring the optical density of a substance by shining light on it and measuring its transmission
dosimetry - measuring the dose of radiation emitted by a radioactive source
fetometry, foetometry - measurement of a fetus (especially the diameter of the head)
gravimetry, hydrometry - the measurement of specific gravity
hypsometry, hypsography - measurement of the elevation of land above sea level
mental measurement - a generic term used to cover any application of measurement techniques to the quantification of mental functions
micrometry - measuring with a micrometer
observation - the act of making and recording a measurement
pelvimetry - measurement of the dimensions of the bony birth canal (to determine whether vaginal birth is possible)
photometry - measurement of the properties of light (especially luminous intensity)
quantification - the act of discovering or expressing the quantity of something
radioactive dating - measurement of the amount of radioactive material (usually carbon 14) that an object contains; can be used to estimate the age of the object
meter reading, reading - the act of measuring with meters or similar instruments; "he has a job meter reading for the gas company"
sampling - measurement at regular intervals of the amplitude of a varying waveform (in order to convert it to digital form)
sounding - the act of measuring depth of water (usually with a sounding line)
sound ranging - locating a source of sound (as an enemy gun) by measurements of the time the sound arrives at microphones in known positions
scaling - act of measuring or arranging or adjusting according to a scale
spirometry - the use of a spirometer to measure vital capacity
surveying - the practice of measuring angles and distances on the ground so that they can be accurately plotted on a map; "he studied surveying at college"
telemetry - automatic transmission and measurement of data from remote sources by wire or radio or other means
thermometry - the measurement of temperature
thermogravimetry - the measurement of changes in weight as a function of changes in temperature used as a technique of chemically analyzing substances
tonometry - the measurement of intraocular pressure by determining the amount of force needed to make a slight indentation in the cornea
viscometry, viscosimetry - the measurement of viscosity

1. size, length, dimension, area, amount, weight, volume, capacity, extent, height, depth, width, magnitude, amplitude Some of the measurements are doubtless inaccurate.
2. calculation, assessment, evaluation, estimation, survey, judgment, valuation, appraisal, computation, calibration, mensuration, metage Measurement of blood pressure can be undertaken by the practice nurse.
measurement [ˈmeʒəmənt] N
1. (= size) → medida f
bust/hip measurementcontorno m de pecho/de caderas
inside leg measurementlargo m de entrepierna
waist measurementcintura f, talle m
to take sb's measurementstomar las medidas a algn
2. (= act, system) → medición f
measurement [ˈmɛʒərmənt]
[waist, bust] → tour m
What is your waist measurement? → Quel est votre tour de taille?
chest measurement → tour m de poitrine
hip measurement → tour m de hanches
[level, pressure] → mesure f measurements
(for clothes)mesures fpl
to take sb's measurements → prendre les mesures de qn
to take measurements [scientist] → procéder à des mesures; [craftsman] → prendre les mesures
measuring jug npot m gradué
measuring tape ncentimètre m
(= act)Messung f; the metric system of measurementdas metrische Maßsystem
(= measure)Maß nt; (= figure)Messwert m; (fig)Maßstab m; to take somebody’s measurementsan jdm or bei jdm Maß nehmen
measurement [ˈmɛʒəmənt] n (act) → misurazione f; (measure) → misura
to take sb's measurements → prendere le misure di or a qn
chest/hip measurement → giro petto/fianchi

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Measurement owes its existence to Earth; Estimation of quantity to Measurement; Calculation to Estimation of quantity; Balancing of chances to Calculation; and Victory to Balancing of chances.
[1]On Barsoom the AD is the basis of linear measurement.
a sulk and pout, by carpenter's measurement, about twenty feet long and five feet deep; a sulk and pout that will yield you some 500 gallons of oil and more.
Measured Resting Metabolic Rate
measured service
measured size
measured spectrum
Measured Telephone Service
Measured Term Contractor
Measured Time
Measured Time
Measured Total Energy Expenditure
measured up
measured up
measured up
measured up
Measured Usage License Charge
Measured Value
measured words
measured words
measured words
measured words
measured work
Measurement & Observation of Clear Air Turbulence
Measurement & Signature Data Requirement
measurement across
Measurement Adoption Process
Measurement and Analysis
Measurement and Analysis Center
Measurement and Analysis Definition Document
Measurement and Analysis on the Wide Internet
Measurement and Automation Explorer
Measurement and Control
Measurement and Control Engineering Center
Measurement and Control Engineering Research Center
Measurement and Control Systems Division
Measurement and Evaluation in Counseling and Development
Measurement and Improvement of Manufacturing Capacity Project
Measurement and Management Technology
Measurement and Operations Analysis Team
Measurement and Signal Intelligence
Measurement and Signature Intelligence
Measurement and Signature Intelligence
Measurement and Signature Intelligence Requirements System
Measurement and Signatures Intelligence
Measurement and Standards Laboratories
Measurement and Stimulus Subsystem
Measurement and Test Equipment
Measurement and Testing
Measurement and Valuation of Health
Measurement and Verification
Measurement Assurance Program
Measurement at All Scales in Time and Space
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