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Meaning of OCTANT

Pronunciation:  '√Ęktunt

WordNet Dictionary
[n]  a measuring instrument for measuring angles to a celestial body; similar to a sextant but with 45 degree calibration

OCTANT is a 6 letter word that starts with O.


 See Also: limb, measuring device, measuring instrument, measuring system



Webster's 1913 Dictionary
\Oc"tant\, n. [L. octans, -antis. fr. octo eight. See
1. (Geom.) The eighth part of a circle; an arc of 45 degrees.

2. (Astron. & Astrol.) The position or aspect of a heavenly
   body, as the moon or a planet, when half way between
   conjunction, or opposition, and quadrature, or distant
   from another body 45 degrees.

3. An instrument for measuring angles (generally called a
   quadrant), having an arc which measures up to 9O[deg], but
   being itself the eighth part of a circle. Cf. {Sextant}.

4. (Math. & Crystallog.) One of the eight parts into which a
   space is divided by three co["o]rdinate planes.