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Definition of Pterygopodium
1. n. A specially modified part of the ventral fin in male elasmobranchs, which serves as a copulatory organ, or clasper.
Definition of Pterygopodium
1. Noun. (anatomy) A modified part of the ventral fin in male elasmobranchs, which serves as a copulatory organ, or clasper. ¹
¹ Source: wiktionary.com