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One eighth
Answer for the clue "One eighth ", 6 letters:
octant
Alternative clues for the word octant
Word definitions for octant in dictionaries
Douglas Harper's Etymology Dictionary
Word definitions in Douglas Harper's Etymology Dictionary
instrument for making angular measurements in navigation or astronomy, 1731, from Late Latin octans "the eighth part," from octo "eight" (see octa- ) on analogy of quadrant . In geometry, octant meant "the eighth part of a circle."
Wikipedia
Word definitions in Wikipedia
An octant in solid geometry is one of the eight divisions of a Euclidean three-dimensional coordinate system defined by the signs of the coordinates. It is similar to the two-dimensional quadrant and the one-dimensional ray . The generalization of an octant ...
WordNet
Word definitions in WordNet
n. a measuring instrument for measuring angles to a celestial body; similar to a sextant but with 45 degree calibration
Usage examples of octant.
Torve the Trog was eating from a heaping plate of kumquats, Morovian sugar-grass, and ruvelo, a red root-paste common in this octant as a staple starch.
Sailors could tell their latitude by the angle of the sun off the horizon, had been doing it for a thousand years with cross-staffs, astrolabes, octants and sextants.
There were no instruments in the taxi, no built-in octants, no patent logs, no computers.