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Definition of Pectoral fin
1. Noun. Either of a pair of fins situated just behind the head in fishes that help control the direction of movement.
Generic synonyms: Fin
Definition of Pectoral fin
1. Noun. (ichthyology) Either of two fins located on each side of a fish just behind the head. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Pectoral Fin
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