sperm whale

noun

: 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)

Illustration of sperm whale

Illustration of sperm whale

Examples of sperm whale in a Sentence

Recent Examples on the Web These orcas hunted a herd of nine adult female sperm whales, eventually making off with one. Paul Smaglik, Discover Magazine, 20 Mar. 2024 Toothed whales, which include dolphins, sperm whales and beluga whales, evolved a nasal vocal organ to make sounds, while baleens rely on their larynx. Will Sullivan, Smithsonian Magazine, 27 Feb. 2024 Dominica Dominica is setting aside 304 square miles of ocean to protect endangered sperm whales. Jules Struck, The Christian Science Monitor, 20 Dec. 2023 In the video, the gray sperm whales are seen huddled together as orcas circle around them. Aspen Pflughoeft, Miami Herald, 26 Mar. 2024 The fact that the whale even approached the beach was a negative sign for some experts — according to the National Geographic, sperm whales are known to dive over 3,000 feet in search of squid to eat and generally live deep in the sea. Charlotte Phillipp, Peoplemag, 11 Mar. 2024 Many sperm whale dialects appear to contain a social-marker coda. Ross Andersen, The Atlantic, 24 Feb. 2024 While sperm whales dive deep into the oceans to make meals out of giant squid, orcas occasionally punch above their weight, taking on blue whales (the largest animals to ever exist). Joshua Rapp Learn, Discover Magazine, 6 Dec. 2023 If it’s defined by having the biggest brain, then sperm whales—whose noggins are a hefty 20 pounds—would be the brightest creatures on Earth. Jocelyn Solis-Moreira, Popular Science, 14 Sep. 2023

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'sperm whale.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

Etymology

short for spermaceti whale

First Known Use

circa 1700, in the meaning defined above

Time Traveler
The first known use of sperm whale was circa 1700

Dictionary Entries Near sperm whale

Cite this Entry

“Sperm whale.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/sperm%20whale. Accessed 1 May. 2024.

Kids Definition

sperm whale

noun
: a large toothed whale with a large chamber in the skull that contains a fluid mixture of spermaceti and oil

More from Merriam-Webster on sperm whale

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!