Top Definition
a unit used to measure angles. 1 radian is the angle in a unit circle where the radius is equal to the arc. since pi radians=180 degrees, radians are usually expressed in terms of pi.
This angle measures pi/2 radians(90 degrees).
by 5'1"Racer June 05, 2005
a small fit girl, usually a box of rocks. easy to get along with. A simpleton kind of girl.
Guy: wow radian is so tight
jealous girl: she is a simpleton
guy: what is that
by TheRealHunter March 07, 2016
Free Daily Email

Type your email address below to get our free Urban Word of the Day every morning!

Emails are sent from We'll never spam you.