auxiliary operation

NOUN
19 LETTERS · STARTS WITH A

auxiliary operation is a valid 19-letter word worth 30 points in Scrabble and 33 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
A1U1X8I1L1I1A1R1Y4O1P3E1R1A1T1I1O1N1
1 + 1 + 8 + 1 + 1 + 1 + 1 + 1 + 4 + 0 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 =30 PTS
DOUBLE WORD → 60TRIPLE WORD → 90
MEANING

What does auxiliary operation mean?

NOUN · 1 SENSE
1

A operation performed by off-line equipment not under the control of the central processing unit.

BROADER