linear functional

17 LETTERS · STARTS WITH L

linear functional is a valid 17-letter word worth 21 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

L1I1N1E1A1R1F4U1N1C3T1I1O1N1A1L1

1 + 1 + 1 + 1 + 1 + 1 + 0 + 4 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =21 PTS

DOUBLE WORD → 42TRIPLE WORD → 63

MEANING

What does linear functional mean?