f layer
NOUN
7 LETTERS · STARTS WITH F
f layer is a valid 7-letter word worth 12 points in Scrabble and 12 points in Words with Friends.
SCRABBLE
WORDS WITH FRIENDS
F4L1A1Y4E1R1
4 + 0 + 1 + 1 + 4 + 1 + 1 =12 PTS
DOUBLE WORD → 24TRIPLE WORD → 36
MEANING
What does f layer mean?
NOUN · 1 SENSE
1
The highest region of the ionosphere (from 90 to 600 miles up) which contains the highest concentration of free electrons and is most useful for long-range radio transmission.
SYNONYMS
AT THE BOARD