membrane
word
Definition
A membrane is a thin, flexible layer of material that separates, covers, or protects something, especially in living organisms. It can be found around cells or between body parts.
Usage & Nuances
"Membrane" is mostly used in scientific, biological, or medical contexts, such as "cell membrane." It can rarely refer to artificial layers in technology (like "waterproof membrane" in construction). Not used informally.
Example Sentences
Doctors check if the ear membrane is healthy during an exam.
natural
Rainwater couldn't get in because there was a waterproof membrane on the roof.
natural
Some medicines have to cross the stomach's protective membrane to work.
natural
The cell is surrounded by a membrane.
basic
A drum makes sound when its membrane is hit.
basic
Plants also have a thin membrane inside their cells.
basic