blue whale

noun

: a very large baleen whale (Balaenoptera musculus synonym Sibbaldus musculus) that may reach a weight of 150 tons (136 metric tons) and a length of 100 feet (30 meters) and is generally considered the largest living animal

Illustration of blue whale

Illustration of blue whale

Examples of blue whale in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
Loreto: Start your Baja Sur weekend in Loreto, a seaside town famous for its blue whales, national parks, beach clambakes, and—thanks to a recent community movement—stargazing. Stephanie Vermillion, Outside Online, 10 Apr. 2025 Whales are also everywhere, and travelers might see killer whales, humpbacks, fins, and blue whales. Judy Koutsky, Forbes.com, 29 Mar. 2025 Meanwhile, sleeker animals such as blue whales, which can grow up to about 100 feet (30 meters) long, can attain enormous lengths while still swimming well. Kate Golembiewski, CNN, 11 Mar. 2025 March is the peak time for gray whales to migrate, and throughout April, they will be replaced with humpback and fin whales before blue whales begin to show up, the tour agency said. Paloma Chavez, Sacbee.com, 26 Mar. 2025 See All Example Sentences for blue whale

Word History

First Known Use

1851, in the meaning defined above

Time Traveler
The first known use of blue whale was in 1851

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Cite this Entry

“Blue whale.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/blue%20whale. Accessed 20 Apr. 2025.

Kids Definition

blue whale

noun
: a whale that may reach a weight of 150 tons (135 metric tons) and a length of 100 feet (30 meters) and is generally considered the largest living animal

More from Merriam-Webster on blue whale

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