Noun: almucantar ,al-mu'kan-tu(r)
- (astronomy) a circle on the sky parallel to the horizon
"The astronomer used almucantars to measure the altitude of celestial objects";
- almacantar
- An instrument for observing the heavenly bodies as they cross a given almucantar circle
"The ancient observatory contained a well-preserved almucantar";
- almacantar
Derived forms: almucantars
Encyclopedia: Almucantar