pinniped
noun
pin·ni·ped ˈpi-nə-ˌped 
: any of an order or suborder (Pinnipedia) of aquatic carnivorous mammals (such as a seal or walrus) with all four limbs modified into flippers
pinniped adjective
Example Sentences
Recent Examples on the Web Walruses are the exception to the rule, as these large, tusked pinnipeds have nearly hairless bodies. 
National Geographic, 24 Dec. 2019 Outfitted with specialized sensors that resemble lumpy metal yarmulkes with antennae, these pinnipeds are collecting data that’s helping researchers track how heat moves through ocean currents. Katherine J. Wu, Smithsonian, 6 Dec. 2019 These tiny crustaceans form the base of the food web and their displacement trickled up the food chain, from herring to salmon to whales and seabirds and pinnipeds. oregonlive, 25 Sep. 2019 Though the summer camp is named after pinnipeds, the scientific classification of animals that includes seals and walruses, campers also learn about whales, dolphins and other marine mammals. Lilly Nguyen, Daily Pilot, 26 July 2019 Some orcas specialize in eating salmon and other fish; others prefer pinnipeds (a group that includes seals and walruses), and a third type feasts on sharks. Jason G. Goldman, Scientific American, 8 July 2019 The big fish feed on pinnipeds like seals that are typically found close to shore. Sarah Gibbens, National Geographic, 18 Mar. 2019 Transient killer whales primarily feed on pinnipeds, of which there is no shortage in the waters around Astoria, while the Southern Residents prefer to dine on salmon. Kale Williams, OregonLive.com, 10 May 2018 Among marine mammals, pinnipeds, such as seals, do—but cetaceans, such as whales and dolphins, do not. Anna Diamond, Smithsonian, 28 June 2018 See More
National Geographic, 24 Dec. 2019 Outfitted with specialized sensors that resemble lumpy metal yarmulkes with antennae, these pinnipeds are collecting data that’s helping researchers track how heat moves through ocean currents. Katherine J. Wu, Smithsonian, 6 Dec. 2019 These tiny crustaceans form the base of the food web and their displacement trickled up the food chain, from herring to salmon to whales and seabirds and pinnipeds. oregonlive, 25 Sep. 2019 Though the summer camp is named after pinnipeds, the scientific classification of animals that includes seals and walruses, campers also learn about whales, dolphins and other marine mammals. Lilly Nguyen, Daily Pilot, 26 July 2019 Some orcas specialize in eating salmon and other fish; others prefer pinnipeds (a group that includes seals and walruses), and a third type feasts on sharks. Jason G. Goldman, Scientific American, 8 July 2019 The big fish feed on pinnipeds like seals that are typically found close to shore. Sarah Gibbens, National Geographic, 18 Mar. 2019 Transient killer whales primarily feed on pinnipeds, of which there is no shortage in the waters around Astoria, while the Southern Residents prefer to dine on salmon. Kale Williams, OregonLive.com, 10 May 2018 Among marine mammals, pinnipeds, such as seals, do—but cetaceans, such as whales and dolphins, do not. Anna Diamond, Smithsonian, 28 June 2018 See More Word History
Etymology
ultimately from Latin pinna + ped-, pes foot — more at foot
First Known Use
1866, in the meaning defined above