visible radiation

NOUN /vɪzəbəl_,reɪdi'eɪʃən/
17 LETTERS · 6 SYLLABLES · STARTS WITH V

visible radiation is a valid 17-letter word worth 22 points in Scrabble and 26 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
V4I1S1I1B3L1E1R1A1D2I1A1T1I1O1N1
4 + 1 + 1 + 1 + 3 + 1 + 1 + 0 + 1 + 1 + 2 + 1 + 1 + 1 + 1 + 1 + 1 =22 PTS
DOUBLE WORD → 44TRIPLE WORD → 66
MEANING

What does visible radiation mean?

NOUN · 1 SENSE
1

(physics) electromagnetic radiation that can produce a visual sensation.