ferrite-rod aerial

18 LETTERS · STARTS WITH F

ferrite-rod aerial is a valid 18-letter word worth 20 points in Scrabble and 21 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

F4E1R1R1I1T1E1-0R1O1D2A1E1R1I1A1L1

4 + 1 + 1 + 1 + 1 + 1 + 1 + 0 + 1 + 1 + 2 + 0 + 1 + 1 + 1 + 1 + 1 + 1 =20 PTS

DOUBLE WORD → 40TRIPLE WORD → 60

MEANING

What does ferrite-rod aerial mean?