magnetic tape unit

18 LETTERS · STARTS WITH M

magnetic tape unit is a valid 18-letter word worth 23 points in Scrabble and 30 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS

M3A1G2N1E1T1I1C3T1A1P3E1U1N1I1T1

3 + 1 + 2 + 1 + 1 + 1 + 1 + 3 + 0 + 1 + 1 + 3 + 1 + 0 + 1 + 1 + 1 + 1 =23 PTS

DOUBLE WORD → 46TRIPLE WORD → 69

MEANING

What does magnetic tape unit mean?