: a very large toothed whale (Physeter macrocephalus synonym P. catodon) that has large conical teeth in the lower jaw, a single blowhole, and a massive squarish head with a closed cavity containing a fluid mixture of spermaceti and oil, and that may reach a length in the male of nearly 60 feet (18.3 meters)
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Off the island of Dominica, guests swam within 20 feet of giant sperm whales.—Michael Verdon, Robb Report, 22 Mar. 2026 On such group is Project CETI (Cetacean Translation Initiative), which is using AI to listen to and decipher meaning encoded in the vocalizations of sperm whales.—Jackie Flynn Mogensen, Scientific American, 8 Mar. 2026 During the survey over the Northeast Canyons and Seamounts Marine National Monument, the researchers spotted more than 300 animals, including three endangered fin whales, three endangered sperm whales, 50 pilot whales and hundreds of dolphins.—Neal Riley, CBS News, 5 Mar. 2026 More folk are looking for escapes that take them to the most remote corners of earth—many of which these larger animals like humpback whales, sperm whales, and giant manta rays call home.—Luke Abrahams, Vogue, 6 Feb. 2026 See All Example Sentences for sperm whale