Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “dinosaur”

See all translations

dinosaur

noun [C]  /ˈdɑɪ·nəˌsɔr/ us  
a reptile (= cold-blooded animal), some types of which were extremely large, that stopped existing a very long time ago A dinosaur is also something that is old and that has not been able to change when conditions have changed and is therefore no longer useful: The old car was a gas-guzzling dinosaur and we had to get rid of it.
Translations of “dinosaur”
in Korean 공룡…
in Arabic دَيْناصور…
in French dinosaure…
in Turkish dinazor…
in Italian dinosauro…
in Chinese (Traditional) 恐龍, 老古董(指過時的人或物)…
in Russian динозавр…
in Polish dinozaur…
in Spanish dinosaurio…
in Portuguese dinossauro…
in German der Dinosaurier…
in Catalan dinosaure…
in Japanese 恐竜…
in Chinese (Simplified) 恐龙, 老古董(指过时的人或物)…
(Definition of dinosaur from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of dinosaur?
Add Cambridge dictionaries to your browser to your website

Definitions of “dinosaur” in other dictionaries

Word of the Day

sail

When a boat or a ship sails, it travels on the water.

Word of the Day

Byronic, Orwellian and Darwinian: adjectives from names.

by Liz Walter,
April 15, 2015
Becoming an adjective is a strange kind of memorial, but it is often a sign of a person having had real influence on the world. Science is full of examples, from Hippocrates, the Greek medic born around 460 BC, who gave his name to the Hippocratic Oath still used by doctors today,

Read More 

dumbwalking noun

April 20, 2015
walking slowly, without paying attention to the world around you because you are consulting a smartphone He told me dumbwalking probably wouldn’t be a long-term problem.

Read More