DICTIONARY ENTRY
3 SYLLABLES
radian
/'reɪdiən/ · reɪdiən
Radian has 3 syllables: ra · di · an.
ra
01
di
02
an
03
noun. 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).
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