Cambridge Dictionaries online Cambridge Dictionaries online

The most popular online dictionary and thesaurus for learners of English

English definition of “membrane”

membrane

noun [C or U] uk   /ˈmem.breɪn/ specialized us  
anatomy a thin piece of skin that covers or connects parts of a person's or animal's body: The cornea is the transparent membrane that covers the front of the eye.Substances and structures in the body engineering a very thin piece of material that covers an openingCoverings and layers biology the outer covering of a cell: a cell membraneCells
(Definition of membrane from the Cambridge Advanced Learners Dictionary & Thesaurus © Cambridge University Press)
What is the pronunciation of membrane?
Add Cambridge dictionaries to your browser to your website

Definitions of “membrane” in other dictionaries

Word of the Day

pint

a measure for liquid equal to about half a litre

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