Lexic.us

Definition of Octant

1. Noun. A measuring instrument for measuring angles to a celestial body; similar to a sextant but with 45 degree calibration.

Definition of Octant

1. n. The eighth part of a circle; an arc of 45 degrees.

Definition of Octant

1. Noun. The eighth part of a circle; an arc of 45 degrees. ¹

2. Noun. (geometry) : The eighth part of a disc; a sector of 45 degrees; half a quadrant. ¹

3. Noun. (nautical) : An instrument for measuring angles, particularly of elevation. ¹

¹ Source: wiktionary.com

Definition of Octant

1. an eighth of a circle [n -S] : OCTANTAL [adj]

Medical Definition of Octant

1. 1. The eighth part of a circle; an arc of 45 degrees. 2. 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. One of the eight parts into which a space is divided by three coordinate planes. Origin: L. Octans, -antis. Fr. Octo eight. See Octave. Source: Websters Dictionary (01 Mar 1998)

Lexicographical Neighbors of Octant

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