- plural of dinosaur.
dinosaurs
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Some dinosaurs were very large and had small brains — factors that may in part have led to their extinction. The term is often used to refer to something or someone that is antiquated and unable to adapt to change: “The old cavalry generals couldn't adjust to the use of tanks — they became dinosaurs.”
Some scientists believe that modern birds are the descendants of dinosaurs.
Commonly known dinosaurs include Tyrannosaurus rex, Brontosaurus, Stegosaurus, and Triceratops.
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
The researchers note that their models did not include every structure that would have affected how the dinosaurs stood.
From Science Daily ● Jul. 20, 2026
The American Museum of Natural History gave fans the chance to rub shoulders with dinosaurs while watching Messi, 39, fail to steer Argentina to its fourth World Cup.
From Barron's ● Jul. 19, 2026
The king of dinosaurs has reclaimed his throne.
From The Wall Street Journal ● Jul. 14, 2026
For the technology available at the time, the dinosaurs looked incredibly realistic and left viewers transfixed.
From BBC ● Jul. 13, 2026
And if there are swamps, why not cyacads and dragonflies and perhaps even dinosaurs on Venus?
From "Cosmos" by Carl Sagan
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Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.