- Either of a set of lateral hind fins of fishes, connected to the pelvic girdle and matching towards hind limbs of greater vertebrates.
- Either of a pair of fins on either side and towards rear of a fish.
- either of a couple of fins attached to the pelvic girdle in fishes that help get a handle on the course of action; correspond to hind limbs of a land vertebrate
- Definition for "pelvic fin"
- Either of a set of lateral hind fins…
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- Hypernym for "pelvic fin"