silicon controlled rectifier

28 LETTERS · STARTS WITH S

silicon controlled rectifier is a valid 28-letter word worth 36 points in Scrabble and 44 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1I1L1I1C3O1N1C3O1N1T1R1O1L1L1E1D2R1E1C3T1I1F4I1E1R1

1 + 1 + 1 + 1 + 3 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 2 + 0 + 1 + 1 + 3 + 1 + 1 + 4 + 1 + 1 + 1 =36 PTS

DOUBLE WORD → 72TRIPLE WORD → 108

MEANING

What does silicon controlled rectifier mean?