| / English Dictionary |
RADIAN
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
The unit of plane angle adopted under the Systeme International d'Unites; equal to the angle at the center of a circle subtended by an arc equal in length to the radius (approximately 57.295 degrees)
Synonyms:
Classified under:
Nouns denoting quantities and units of measure
Hypernyms ("radian" is a kind of...):
angular unit (a unit of measurement for angles)
Meronyms (parts of "radian"):
milliradian (a unit of angular distance equal to one thousandth of a radian)
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