traveling-wave tube

19 LETTERS · STARTS WITH T

traveling-wave tube is a valid 19-letter word worth 29 points in Scrabble and 36 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

T1R1A1V4E1L1I1N1G2-0W4A1V4E1T1U1B3E1

1 + 1 + 1 + 4 + 1 + 1 + 1 + 1 + 2 + 0 + 4 + 1 + 4 + 1 + 0 + 1 + 1 + 3 + 1 =29 PTS

DOUBLE WORD → 58TRIPLE WORD → 87

MEANING

What does traveling-wave tube mean?