proportional counter tube

NOUN
25 LETTERS · STARTS WITH P

proportional counter tube is a valid 25-letter word worth 31 points in Scrabble and 40 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3R1O1P3O1R1T1I1O1N1A1L1C3O1U1N1T1E1R1T1U1B3E1
3 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 3 + 1 =31 PTS
DOUBLE WORD → 62TRIPLE WORD → 93
MEANING

What does proportional counter tube mean?

NOUN · 1 SENSE
1

Counter tube whose output pulse is proportional to number of ions produced.