Sextant Definition

sĕkstənt
sextants
noun
An instrument used by navigators for measuring the angular distance of the sun, a star, etc. from the horizon, as in finding the position of a ship.
Webster's New World

(geometry) One sixth of a circle or disc; a sector with an angle of 60°.

Wiktionary

Other Word Forms of Sextant

Noun

Singular:
sextant
Plural:
sextants

Origin of Sextant

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

    From American Heritage Dictionary of the English Language, 5th Edition

  • From Latin sextāns, a bronze coin worth one-sixth of an as.

    From Wiktionary

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