from The American Heritage® Dictionary of the English Language, 4th Edition
- n. Either of a pair of lateral hind fins of fishes, attached to the pelvic girdle and corresponding to the hind limbs of higher vertebrates.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Either of a pair of fins on either side and towards the rear of a fish.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. either of a pair of fins attached to the pelvic girdle in fishes that help control the direction of movement; correspond to hind limbs of a land vertebrate
Sorry, no etymologies found.