bilinear form

13 LETTERS · STARTS WITH B

bilinear form is a valid 13-letter word worth 19 points in Scrabble and 23 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

B3I1L1I1N1E1A1R1F4O1R1M3

3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 4 + 1 + 1 + 3 =19 PTS

DOUBLE WORD → 38TRIPLE WORD → 57

MEANING

What does bilinear form mean?