Meaning & use
membrane
A thin, flexible layer of tissue that covers, lines, or separates parts of an organism.
See it in a sentence
The cell membrane controls which substances can enter or leave the cell.
A thin membrane separates the inner ear from the surrounding bone structure.
A note on using this word
Membrane is common in biology for cell structures but also applies to thin synthetic layers used in filtration technology.
Words with a similar meaning
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