English-Thai Dictionary
octant
N รูปทรง สาม มิติ ซึ่ง มี แปด ด้าน rub-song-sam-mi-ti-sueng-me-ped-dan
Webster's 1828 Dictionary
OCTANT
n.[L. octans, an eighth part, from octo, eight. ] In astronomy, that aspect of two planets in which they are distant from each other the eighth part of a circle or 45 degrees.
Webster's 1913 Dictionary
OCTANT
Oc "tant, n. Etym: [L. octans, -antis. fr. octo eight. See Octave. ]
1. (Geom.)
Defn: The eighth part of a circle; an arc of 45 degrees.
2. (Astron. & Astrol.)
Defn: 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 9Oº, but being itself the eighth part of a circle. Cf. Sextant.
4. (Math. & Crystallog.)
Defn: One of the eight parts into which a space is divided by three coördinate planes.
New American Oxford Dictionary
octant
oc tant |ˈäktənt ˈɑktənt | ▶noun an arc of a circle equal to one eighth of its circumference, or the area enclosed by such an arc with two radii of the circle. • each of eight parts into which a space or solid body is divided by three planes that intersect (esp. at right angles ) at a single point. • an obsolete instrument in the form of a graduated eighth of a circle, used in astronomy and navigation. ORIGIN late 17th cent.: from Latin octans, octant- ‘half-quadrant, ’ from octo ‘eight. ’
Oxford Dictionary
octant
octant |ˈɒkt (ə )nt | ▶noun an arc of a circle equal to one eighth of its circumference, or the area enclosed by such an arc with two radii of the circle. • each of eight parts into which a space or solid body is divided by three planes which intersect (especially at right angles ) at a single point. • an obsolete instrument in the form of a graduated eighth of a circle, used in astronomy and navigation. ORIGIN late 17th cent.: from Latin octans, octant- ‘half-quadrant ’, from octo ‘eight ’.
Spanish Dictionary
octante
octante nombre masculino Instrumento náutico análogo al sextante, pero cuyo sector comprende la octava parte del círculo (45º ).
The Wordsmith Dictionary