radian

1. A unit of angular measure equal to the angle subtended at the center of a circle by an arc equal in length to the radius of the circle, approximately 57°17ʹ44.6〞. See Table at measurement.

2. A unit of plane angular measurement that is equal to the angle at the center of a circle subtended by an arc whose length equals the or approximately 57.3 degrees.

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Top Words by points	Points	Word Game
radian	7	Scrabble

2 Letters	Scrabble® Points
ad	3
na	2
in	2
id	3
da	3
aa	2
ar	2
ai	2
an	2

3 Letters	Scrabble® Points
ain	3
rai	3
rad	4
ran	3
ria	3
rid	4
rin	3
aid	4
din	4
dan	4
ani	3
and	4
ana	3
air	3

4 Letters	Scrabble® Points
rain	4
raid	5
raia	4
rand	5
rani	4
rind	5
nada	5
nard	5
darn	5
arid	5
aria	4
airn	4

5 Letters	Scrabble® Points
naira	5
naiad	6
nadir	6
drain	6
dinar	6
ranid	6

6 Letters	Scrabble® Points
radian	7