from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a small circle on the celestial sphere, parallel to the horizon, that is used in astronomy and navigation to show altitude of a star or any other heavenly body.
from the GNU version of the Collaborative International Dictionary of English
- n. A small circle of the sphere parallel to the horizon; a circle or parallel of altitude. Two stars which have the same almucantar have the same altitude. See almacantar.
from The Century Dictionary and Cyclopedia
- n. In astronomy, a small circle of the sphere parallel to the horizon; a circle or parallel of altitude.
- n. An astronomical instrument (invented by S. C. Chandler) consisting of a telescope provided with horizontal wires and mounted upon a box floating upon mercury.
From mediaeval Latin almucantarath or French almicantarat, from Arabic المقنطرات (al-muqanŧarāt) ‘circles of celestial latitude’, formed from the plural of قنطرة (qanŧara) ‘arch’. (Wiktionary)