proportional counter

NOUN /prə'poʊrʃənəl_'kaʊntər/
20 LETTERS · STARTS WITH P

proportional counter is a valid 20-letter word worth 25 points in Scrabble and 32 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
P3R1O1P3O1R1T1I1O1N1A1L1C3O1U1N1T1E1R1
3 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 3 + 1 + 1 + 1 + 1 + 1 + 1 =25 PTS
DOUBLE WORD → 50TRIPLE WORD → 75
MEANING

What does proportional counter mean?

NOUN · 1 SENSE
1

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