semiautomatic control

21 LETTERS · STARTS WITH S

semiautomatic control is a valid 21-letter word worth 28 points in Scrabble and 35 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

S1E1M3I1A1U1T1O1M3A1T1I1C3C3O1N1T1R1O1L1

1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 3 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =28 PTS

DOUBLE WORD → 56TRIPLE WORD → 84

MEANING

What does semiautomatic control mean?