radial triangulation

20 LETTERS · STARTS WITH R

radial triangulation is a valid 20-letter word worth 21 points in Scrabble and 27 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

R1A1D2I1A1L1T1R1I1A1N1G2U1L1A1T1I1O1N1

1 + 1 + 2 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 1 + 1 + 2 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =21 PTS

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does radial triangulation mean?