The Britannica Dictionary
mobile search
Home
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
×
Britannica Homepage
Ask the Editor
Word of the Day
Quizzes
Core Vocabulary
Browse the Dictionary
The Britannica Dictionary
membrane
2 ENTRIES FOUND:
membrane
(noun)
mucous membrane
(noun)
membrane
/
ˈ
mɛmˌbreɪn/
noun
plural
membranes
membrane
/
ˈ
mɛmˌbreɪn/
noun
plural
membranes
Britannica Dictionary definition of MEMBRANE
[
count
]
:
a thin sheet or layer
The computer chip is covered by/with a plastic
membrane
. [=the computer chip is covered by/with a very thin sheet of plastic]
[+] more examples
[-] hide examples
[+] Example sentences
[-] Hide examples
especially
:
a thin sheet or layer of tissue that is part of a plant or an animal's body
a cell
membrane
[+] more examples
[-] hide examples
[+] Example sentences
[-] Hide examples
— membranous
/
ˈ
mɛmbrənəs/
adjective
,
technical
membranous
tissue
[+] more examples
[-] hide examples
[+] Example sentences
[-] Hide examples
ASK THE EDITOR
Why do we say "did you know" rather than "do you know"?
See the answer »
QUIZZES
Vocabulary Quiz
Test your word power
Take the Quiz »
Name That Thing
Take our visual quiz
Test Your Knowledge »
WORD OF THE DAY
protocol
:
a system of rules that explain the correct conduct and procedures to follow in formal situations
Learn More »