pectoral fin

noun

: either of the fins of a fish that correspond to the forelimbs of a quadruped

Examples of pectoral fin in a Sentence

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However, larger bodies require more energy to move, reinforcing the selection for higher pectoral fin aspect ratios. —

Melissa Cristina Marquez, Forbes, 1 Nov. 2024 The other study examines the genetics that allowed the fish to repurpose pectoral fins into legs. —

Gary Stix, Scientific American, 26 Sep. 2024 For instance, their lobed pectoral fins, which are thought to be precursors to the limbs of terrestrial vertebrates, are well-adapted for maneuvering in deep, complex underwater environments. —

Scott Travers, Forbes, 12 Sep. 2024 Instead, Sharp and the others went from dolphin to dolphin, rolling those that were on their sides onto their bellies and then hand-digging the sand out from beneath the dolphins’ nine-inch pectoral fins so the appendages wouldn’t dislocate. —

Jayme Moye, Outside Online, 19 July 2024 See all Example Sentences for pectoral fin