Fish's appendage (3)
I believe the answer is:
fin
(Other definitions for fin that I've seen before include "Found on a fish" , "Part of an aircraft's tail" , "Swimmer" , "Swimmer's flipper" , "For movement and balance in fish" .)
I believe the answer is:
fin
(Other definitions for fin that I've seen before include "Found on a fish" , "Part of an aircraft's tail" , "Swimmer" , "Swimmer's flipper" , "For movement and balance in fish" .)