- Either associated with the anterior pair of fins connected to the pectoral girdle of fishes, corresponding into the forelimbs of higher vertebrates.
- Either of two fins located on each part of a fish just behind the head.
- either of a pair of fins situated simply behind your head in fishes which help control the direction of motion
- Definition for "pectoral fin"
- Either associated with the anterior pair of fins…
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- Hypernym for "pectoral fin"