clear-air turbulence

NOUN
20 LETTERS · STARTS WITH C

clear-air turbulence is a valid 20-letter word worth 24 points in Scrabble and 32 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
C3L1E1A1R1-0A1I1R1T1U1R1B3U1L1E1N1C3E1
3 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 0 + 1 + 1 + 1 + 3 + 1 + 1 + 1 + 1 + 3 + 1 =24 PTS
DOUBLE WORD → 48TRIPLE WORD → 72
MEANING

What does clear-air turbulence mean?

NOUN · 1 SENSE
1

Strong turbulence in an otherwise cloudless region that subjects aircraft to violent updrafts or downdrafts.

BROADER