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

Examples of blue whale in a Sentence

Recent Examples on the Web

Its roughly 45,000 members tirelessly post absurd misinformation on everything from the nuances of watering a brick to grow a house to the claim that blue whales are actually orange. — Frank Landymore, Futurism, 25 June 2026

The second-largest whale species after blue whales, fin whales are classified as an endangered species, according to NOAA. — Thao Nguyen, USA Today, 22 June 2026

Gray whales migrate from late fall to early spring, and humpback and blue whales migrate from late spring to early fall. — Tribune News Service, Baltimore Sun, 29 Apr. 2026

Hundreds of blue whales migrate through the depths of the Sea of Cortez from February to March, though they’re rarely spotted by humans. — Hannah Towey, Condé Nast Traveler, 22 Apr. 2026

Word History

First Known Use

1851, in the meaning defined above

Rhymes for blue whale

• airmail
• assail
• avail
• bewail
• blackmail
• cattail
• cocktail
• curtail
• derail
• detail
• dovetail
• email

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