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Examples of pectoral fin in a Sentence
Recent Examples on the Web
This bizarre creature really is a fish, despite its bullfrog face, pectoral fins that look like webbed feet, and a froglike mouth that snaps up unsuspecting prey.
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Elizabeth Rayne, Ars Technica, 30 Dec. 2024
However, larger bodies require more energy to move, reinforcing the selection for higher pectoral fin aspect ratios.
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Melissa Cristina Marquez, Forbes, 1 Nov. 2024
The other study examines the genetics that allowed the fish to repurpose pectoral fins into legs.
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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.
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Scott Travers, Forbes, 12 Sep. 2024
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Word History
First Known Use
1715, in the meaning defined above
Dictionary Entries Near pectoral fin
Cite this Entry
“Pectoral fin.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/pectoral%20fin. Accessed 21 Feb. 2025.
Kids Definition
pectoral fin
noun
: either of a pair of fins of a fish that correspond to the front limbs of a four-footed animal compare pelvic fin
More from Merriam-Webster on pectoral fin
Britannica.com: Encyclopedia article about pectoral fin
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