Fin on a Shark's Back

This page is the CodyCross answer for the clue below from Greece, Group 661, Puzzle 4 (Athens Acropolis).

Question

Fin on a Shark's Back

Answer

DORSAL

Word Meaning:

DORSAL — (anatomy, zootomy) With respect to, or concerning the side in which the backbone is located, or the analogous side of an invertebrate.

Definitions from Wiktionary.