oscilloscope tube

17 LETTERS · STARTS WITH O

oscilloscope tube is a valid 17-letter word worth 24 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

O1S1C3I1L1L1O1S1C3O1P3E1T1U1B3E1

1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 3 + 1 + 0 + 1 + 1 + 3 + 1 =24 PTS

DOUBLE WORD → 48TRIPLE WORD → 72

MEANING

What does oscilloscope tube mean?