cerenkov radiation

18 LETTERS · STARTS WITH C

cerenkov radiation is a valid 18-letter word worth 27 points in Scrabble and 31 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

C3E1R1E1N1K5O1V4R1A1D2I1A1T1I1O1N1

3 + 1 + 1 + 1 + 1 + 5 + 1 + 4 + 0 + 1 + 1 + 2 + 1 + 1 + 1 + 1 + 1 + 1 =27 PTS

DOUBLE WORD → 54TRIPLE WORD → 81

MEANING

What does cerenkov radiation mean?