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n. pl. ra·tios
1. Relation in degree or number between two similar things.
2. The relative value of silver and gold in a currency system that is bimetallic.
3. Mathematics A relationship between two quantities, normally expressed as the quotient of one divided by the other; for example, the ratio of 7 to 4 can be written 7:4 or 7/4. A ratio can often also be expressed as a decimal or percentage.
[Latin ratiō, calculation, from ratus, past participle of rērī, to reckon, consider; see ar- in Indo-European roots.]
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
n, pl -tios
1. a measure of the relative size of two classes expressible as a proportion: the ratio of boys to girls is 2 to 1.
2. (Mathematics) maths a quotient of two numbers or quantities. See also proportion6
[C17: from Latin: a reckoning, from rērī to think; see reason]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ra•tio(ˈreɪ ʃoʊ, -ʃiˌoʊ)
n., pl. -tios.
1. the relation between two similar magnitudes with respect to the number of times the first contains the second: the ratio of 5 to 2, written 5:2 or 5/2.
2. proportional relation; rate: the ratio between acceptances and rejections.
3. the relative value of gold and silver when both are used as a country's monetary standard.
[1630–40; < Latin ratiō reckoning, proportion]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
A relationship between two quantities, normally expressed as the quotient of one divided by the other. For example, if a box contains six red marbles and four blue marbles, the ratio of red marbles to blue marbles is 6 to 4, also written 6:4. A ratio can also be expressed as a decimal or percentage.
The American Heritage® Student Science Dictionary, Second Edition. Copyright © 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.
ratio- From Latin, literally, "reckoning."
See also related terms for reckoning.
Farlex Trivia Dictionary. © 2012 Farlex, Inc. All rights reserved.
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|Noun||1.||ratio - the relative magnitudes of two quantities (usually expressed as a quotient)|
abundance - (chemistry) the ratio of the total mass of an element in the earth's crust to the total mass of the earth's crust; expressed as a percentage or in parts per million
abundance - (physics) the ratio of the number of atoms of a specific isotope of an element to the total number of isotopes present
aspect ratio - the ratio of the width to the height of a tv picture
average - (sports) the ratio of successful performances to opportunities
breadth index, cephalic index, cranial index - ratio (in percent) of the maximum breadth to the maximum length of a skull
efficiency - the ratio of the output to the input of any system
facial index - the ratio (in percent) of the maximum width to the maximum height of the face
f number, focal ratio, stop number, speed - the ratio of the focal length to the diameter of a (camera) lens system
relative frequency, frequency - the ratio of the number of observations in a statistical category to the total number of observations
haematocrit, hematocrit, packed cell volume - the ratio of the volume occupied by packed red blood cells to the volume of the whole blood as measured by a hematocrit
I.Q., intelligence quotient, IQ - a measure of a person's intelligence as indicated by an intelligence test; the ratio of a person's mental age to their chronological age (multiplied by 100)
load factor - (aeronautics) the ratio of an external load to the weight of the aircraft (measured in g)
loss ratio - the ratio of the annual claims paid by an insurance company to the premiums received
Mach number - the ratio of the speed of a moving body to the speed of sound
magnification - the ratio of the size of an image to the size of the object
mechanical advantage - the ratio of the force exerted by a machine to the force applied to it
fuel consumption rate, gas mileage, gasoline mileage, mileage - the ratio of the number of miles traveled to the number of gallons of gasoline burned
betting odds, odds - the ratio by which one better's wager is greater than that of another; "he offered odds of two to one"
magnitude, order of magnitude - a number assigned to the ratio of two quantities; two quantities are of the same order of magnitude if one is less than 10 times as large as the other; the number of magnitudes that the quantities differ is specified to within a power of 10
output-to-input ratio - the output power of a transducer divided by the input power
prevalence - (epidemiology) the ratio (for a given time period) of the number of occurrences of a disease or event to the number of units at risk in the population
productivity - (economics) the ratio of the quantity and quality of units produced to the labor per unit of time
proportionality - a ratio of two quantities that is constant
quotient - the ratio of two quantities to be divided
index of refraction, refractive index - the ratio of the velocity of light in a vacuum to that in a medium
relative humidity - the ratio of the amount of water in the air at a give temperature to the maximum amount it could hold at that temperature; expressed as a percentage
respiratory quotient - the ratio of the volume of carbon dioxide expired to the volume of oxygen consumed by an organism or cell in a given period of time
factor of safety, safety factor - the ratio of the breaking stress of a structure to the estimated maximum stress in ordinary use
S/N, signal/noise, signal/noise ratio, signal-to-noise, signal-to-noise ratio - the ratio of signal intensity to noise intensity
stoichiometry - (chemistry) the relation between the quantities of substances that take part in a reaction or form a compound (typically a ratio of whole integers)
time constant - the ratio of the inductance of a circuit in henries to its resistance in ohms
employee turnover, turnover, turnover rate - the ratio of the number of workers that had to be replaced in a given time period to the average number of workers
loading - the ratio of the gross weight of an airplane to some factor determining its lift
eccentricity - (geometry) a ratio describing the shape of a conic section; the ratio of the distance between the foci to the length of the major axis; "a circle is an ellipse with zero eccentricity"
|2.||ratio - the relation between things (or parts of things) with respect to their comparative quantity, magnitude, or degree; "an inordinate proportion of the book is given over to quotations"; "a dry martini has a large proportion of gin"|
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
noun proportion, rate, relationship, relation, arrangement, percentage, equation, fraction, correspondence, correlation The adult to child ratio is 1 to 6.
Collins Thesaurus of the English Language – Complete and Unabridged 2nd Edition. 2002 © HarperCollins Publishers 1995, 2002
ratio[ˈreɪʃɪəʊ] N → razón f
in the ratio of 2 to 1 → a razón de 2 a 1
in inverse ratio → en proporción or razón inversa
in direct ratio to → en proporción or razón directa con
the ratio of wages to raw materials → la relación entre los sueldos y las materias primas
Collins Spanish Dictionary - Complete and Unabridged 8th Edition 2005 © William Collins Sons & Co. Ltd. 1971, 1988 © HarperCollins Publishers 1992, 1993, 1996, 1997, 2000, 2003, 2005
ratio[ˈreɪʃiəʊ] n → ratio m
a ratio of 5 to 1 → un ratio de 5 pour 1
the ratio of boys to girls → le ratio garçons-filles
a high teacher/pupil ratio → un ratio professeurs-élèves élevé
The adult to child ratio is 1 to 6 → Le ratio adultes-enfants est de 1 pour 6.
Collins English/French Electronic Resource. © HarperCollins Publishers 2005
Collins German Dictionary – Complete and Unabridged 7th Edition 2005. © William Collins Sons & Co. Ltd. 1980 © HarperCollins Publishers 1991, 1997, 1999, 2004, 2005, 2007
Collins Italian Dictionary 1st Edition © HarperCollins Publishers 1995
ratio(ˈreiʃiəu) – plural ˈratios – noun
the amount or proportion of one thing compared to another. There is a ratio of two girls to one boy in this class. verhouding نِسْبَه пропорция proporção poměr das Verhältnis forhold αναλογίαproporción suhe نسبت suhde proportionיחס अनुपात omjer (arány)szám perbandingan hlutfall proporzione 比 비율 proporcija, santykis proporcija; attiecība nisbah verhoudingforholdstosunek نسبت proporção raport, proporţie пропорция pomer razmerje odnos förhållande, proportion อัตราส่วน oran, nisbet 比例，比率 коефіцієнт; співвідношення تناسب tỷ lệ 比例，比率
Kernerman English Multilingual Dictionary © 2006-2013 K Dictionaries Ltd.
ratio→ نِسْبَة poměr forhold Verhältnis λόγος proporción suhde rapport omjer rapporto 比率 비율 verhouding forhold stosunek proporção соотношение förhållande อัตราส่วน oran tỷ lệ 比率
Multilingual Translator © HarperCollins Publishers 2009
L. relación, proporción, razón, expresión de la cantidad de una sustancia en relación con otra.
English-Spanish Medical Dictionary © Farlex 2012
ration (math) razón f; international normalized — (INR) razón normalizada internacional
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.