cosmic ray

NOUN /kɑzmɪk_reɪ/
10 LETTERS · STARTS WITH C

cosmic ray is a valid 10-letter word worth 18 points in Scrabble and 20 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
C3O1S1M3I1C3R1A1Y4
3 + 1 + 1 + 3 + 1 + 3 + 0 + 1 + 1 + 4 =18 PTS
DOUBLE WORD → 36TRIPLE WORD → 54
MEANING

What does cosmic ray mean?

NOUN · 1 SENSE
1

Highly penetrating ionizing radiation of extraterrestrial origin; consisting chiefly of protons and alpha particles; collision with atmospheric particles results in rays and particles of many kinds.