variable condenser

18 LETTERS · STARTS WITH V

variable condenser is a valid 18-letter word worth 25 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

V4A1R1I1A1B3L1E1C3O1N1D2E1N1S1E1R1

4 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 0 + 3 + 1 + 1 + 2 + 1 + 1 + 1 + 1 + 1 =25 PTS

DOUBLE WORD → 50TRIPLE WORD → 75

MEANING

What does variable condenser mean?