angular unit

Từ điển WordNet v3.1 - WordNet Dictionary

noun

a unit of measurement for angles
• Hypernyms:
unit of measurement, unit
• Hyponyms:
mil, degree, arcdegree, second, arcsecond,
minute, arcminute, minute of arc, microradian, milliradian, radian,
rad, grad, grade, oxtant, sextant, straight angle,
steradian, sr