Definitions of Octant [ˈɒk tənt]

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Definition of 'Octant'

Random House Webster's College Dictionary

1. (n.) octant
the eighth part of a circle.

2.  octant
any of the eight parts into which three mutually perpendicular planes divide space.

3.  octant
an instrument having an arc of 24°, used by navigators for measuring angles up to 90°.

4.  octant
the position of one heavenly body when 45° distant from another.

Etymology: (1680–90; < L octant-, s. of octāns=oct(ō)eight+-āns, as in quadrānsquadrant)

Definition of 'Octant'

Princeton's WordNet

1. (noun) octant
a measuring instrument for measuring angles to a celestial body; similar to a sextant but with 45 degree calibration

'Octant' - Nearby Entries
octane rating octangular octans octant octave octavian octavo

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