Membrane

/ˈmɛm.brɪn/

Meaning & Definition

noun

A membrane is a thin layer of tissue that covers a surface, lines a cavity, or divides a space or organ.

The cell membrane regulates the flow of substances in and out of the cell.

In biology, a membrane can refer to a biological barrier, often composed of lipid layers.

The nuclear membrane surrounds the nucleus and protects its contents.

In engineering, a membrane refers to a flexible barrier that can separate substances, often used in filtration.

The reverse osmosis membrane was effective in purifying the water.

In music, a membrane can refer to a thin material that vibrates to produce sound, such as in drums.

The drummer carefully tuned the membrane of the snare drum for the perfect sound.

From Latin 'membrana', meaning 'skin' or 'membrane'.

cell membrane

The structure that encloses the cytoplasm of a cell.

semi-permeable membrane

A membrane that selectively allows certain molecules to pass through.

basement membrane

A thin, fibrous, extracellular matrix that separates epithelial cells from underlying tissue.

plasma membrane

The cell membrane that surrounds and protects the interior of the cell.

biological membrane

Any membrane that is biologically active and exists within living organisms.

A term used in science fiction or informal language to describe a boundary or barrier.

It felt like we were trapped behind a membrane, isolated from the world.