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:

rad; radian

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)

Credits