: any of a genus (Trichechus of the family Trichechidae) of large, herbivorous, aquatic mammals that inhabit warm coastal and inland waters of the southeastern U.S., West Indies, northern South America, and West Africa and have a rounded body, a small head with a squarish snout, paddle-shaped flippers usually with vestigial nails, and a flattened, rounded tail used for propulsion
Note:
Manatees are sirenians related to and resembling the dugong but differing most notably in the shape of the tail.
An aquatic relative of the elephant, manatees grow up to nine feet long and can weigh 1,000 pounds.—Felicity Barringer
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Visitors can walk 7 miles of trails and see 140 bird species and animals such as manatees, dolphins, alligators, otters, bobcats, sea turtles and gopher tortoises.—Usa Today Network, USA Today, 10 June 2026 This coastal ecosystem teems with dolphins, manatees, and native birdlife.—Kristy Tolley, Travel + Leisure, 10 June 2026 South Lido Beach is a quiet stretch best known for manatee spotting on kayaks, and famed Siesta Beach on nearby Siesta Key has been named best beach in America by TripAdvisor.—Kaitlyn Yarborough, Southern Living, 6 June 2026 Wildlife in the park includes bald eagles, ospreys and manatees.—Richard Tribou, The Orlando Sentinel, 23 May 2026 See All Example Sentences for manatee
Word History
Etymology
Spanish manatí, probably of Carib origin; akin to Antillean Carib manattoüi manatee
: any of several chiefly tropical water-dwelling mammals that eat plants and differ from the related dugong especially in having the tail broad and rounded