Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “oyster”

oyster

noun [C]  /ˈɔɪ·stər/ us  
a water creature that grows within a shell, some types of which can be eaten, and other types of which produce pearls (= small, round, white stones used in jewelry)
(Definition of oyster from the Cambridge Academic Content Dictionary © Cambridge University Press)
What is the pronunciation of oyster?
Browse related topics

You are looking at an entry to do with Sea creatures, but you might be interested in these topics from the Fish, Reptiles, Insects and Other Animals topic area:

Add Cambridge dictionaries to your browser to your website

Definitions of “oyster” in other dictionaries

Word of the Day

throw

to send something through the air with force, especially by a sudden movement of the arm

Word of the Day

Blog

Read our blog about how the English language behaves.

Learn More

New Words

Find words and meanings that have just started to be used in English, and let us know what you think of them.

Learn More