heterocercal fin

NOUN
16 LETTERS · STARTS WITH H

heterocercal fin is a valid 16-letter word worth 25 points in Scrabble and 28 points in Words with Friends.

SCRABBLE WORDS WITH FRIENDS
H4E1T1E1R1O1C3E1R1C3A1L1F4I1N1
4 + 1 + 1 + 1 + 1 + 1 + 3 + 1 + 1 + 3 + 1 + 1 + 0 + 4 + 1 + 1 =25 PTS
DOUBLE WORD → 50TRIPLE WORD → 75
MEANING

What does heterocercal fin mean?

NOUN · 1 SENSE
1

A tail fin with unequal lobes in which the vertebral column turns upward into the larger lobe as in sharks.