reentrant polygon

NOUN
17 LETTERS · STARTS WITH R

reentrant polygon is a valid 17-letter word worth 22 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
R1E1E1N1T1R1A1N1T1P3O1L1Y4G2O1N1
1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 4 + 2 + 1 + 1 =22 PTS
DOUBLE WORD → 44TRIPLE WORD → 66
MEANING

What does reentrant polygon mean?

NOUN · 1 SENSE
1

A polygon with one or more reentrant angles.