al|mu|can|tar

al|mu|can|tar
al|mu|can|tar «AL myuh KAN tuhr», noun. Astronomy.
1. a small circle on the celestial sphere parallel to the horizon or horizontal plane; a parallel or circle of altitude.
2. an astronomical instrument consisting of a telescope crossed by horizontal wires and mounted on a box floating on mercury. By using it to note the rise of a star in the east and the setting of a star in the west an observer can accurately correct a timepiece and determine latitude.
[< French almicantarat < Medieval Latin almucantarath < Arabic al-muqanāt, plural, ultimately < qan bridge]

Useful english dictionary. 2012.

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