: either of the fins of a fish that correspond to the forelimbs of a quadruped
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Ghost sharks use their forehead teeth to grip a female mate's pectoral fins while reproducing, according to video records examined in the study.—Staff Author, PEOPLE, 10 Sep. 2025 Speaking of the battery, it's integrated directly into the pectoral fins.—New Atlas, 8 Sep. 2025 They are so named for the black color on the tips of their dorsal and pectoral fins.—David Goodhue, Miami Herald, 3 Sep. 2025 The sighting involved tail slapping and the whales slapping their pectoral fin against the ocean’s surface, boaters said.—Paloma Chavez
august 22, Sacbee.com, 22 Aug. 2025 See All Example Sentences for pectoral fin
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