sextant

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sex·tant

 (sĕk′stənt)
n.
1. A navigational instrument containing a graduated 60-degree arc, used for measuring the altitudes of celestial bodies for use in determining the latitude and longitude of the observer.
2. Sextant See Sextans.

[New Latin sextāns, sextant-, from Latin, sixth part (so called because the instrument's arc is a sixth of a circle), from sextus, sixth; see s(w)eks in Indo-European roots.]

sextant

(ˈsɛkstənt)
n
1. (Navigation) an optical instrument used in navigation and consisting of a telescope through which a sighting of a heavenly body is taken, with protractors for determining its angular distance above the horizon or from another heavenly body
2. (Tools) an optical instrument used in navigation and consisting of a telescope through which a sighting of a heavenly body is taken, with protractors for determining its angular distance above the horizon or from another heavenly body
3. (Mathematics) a sixth part of a circle having an arc which subtends an angle of 60°
[C17: from Latin sextāns one sixth of a unit]

sex•tant

(ˈsɛk stənt)

n.
an astronomical instrument used to determine latitude and longitude at sea by measuring angular distances, esp. the altitudes of sun, moon, and stars.
[1590–1600; < New Latin sextant-, s. of sextāns, Latin: sixth part of a unit (see sext, -ant); the instrument has a graduated arc equal to a sixth of a circle]

sextant

a navigational instrument for determining latitude and longitude by measuring the angles of heavenly bodies in relation to the horizon or other heavenly bodies.
See also: Instruments
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.sextant - a unit of angular distance equal to 60 degreessextant - a unit of angular distance equal to 60 degrees
circumference - the length of the closed curve of a circle
angular unit - a unit of measurement for angles
arcdegree, degree - a measure for arcs and angles; "there are 360 degrees in a circle"
2.sextant - a measuring instrument for measuring the angular distance between celestial objects; resembles an octant
astrolabe - an early form of sextant
limb - the graduated arc that is attached to an instrument for measuring angles; "the limb of the sextant"
measuring device, measuring instrument, measuring system - instrument that shows the extent or amount or quantity or degree of something
Translations
sextant
sekstantti

sextant

[ˈsekstənt] Nsextante m

sextant

nSextant m
References in periodicals archive ?
The first practical navigating quadrant, Hadley's Mariner's Quadrant, was invented by Thomas Godfrey.