Octant

[Oc·tant]

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

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

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

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

n.
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.

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

n.
One of the eight parts into which a space is divided by three coordinate planes.

Octant

Oc"tant , n. [L. octans, -antis. fr. octo eight. See Octave.] 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°, 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'94rdinate planes.

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

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Usage Examples

Misspelled Form

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