pelvic fin

noun

1. (in fishes) either of a pair of fins on the lower surface of the body, corresponding to the hind limbs of a land vertebrate; ventral fin.

pelvic fin

noun

1. either of a pair of fins attached to the pelvic girdle of fishes that help to control the direction of movement during locomotion

Word History and Origins

Origin of pelvic fin¹

First recorded in 1905–10

Example Sentences

Pelvic fin of a young male embryo of Scyllium stellare, magnified 16 diameters.

From Project Gutenberg

Transverse section through the pelvic fin of an embryo of Scyllium belonging to stage P, magnified 50 diameters.

From Project Gutenberg

Pelvic fin of a very young female embryo of Scyllium stellare, magnified 16 diameters.

From Project Gutenberg

An anomalous individual, lacking a right pelvic fin, was found in Lone Star Lake.

From Project Gutenberg

Huxley does not enter into the question of the origin of the skeleton of the pelvic fin of Elasmobranchii.

From Project Gutenberg