endoscope
nounUK /ˈendəskəʊp/
US /ˈendəskoʊp/
A long, thin tool with a tiny light and camera that doctors use to look inside your body.
The doctor used an endoscope to see inside the boy's stomach without cutting him open.
RELATED WORDS
OTHER MEANINGS
2. A flexible or rigid optical instrument used in engineering to inspect hard-to-reach places inside machines.
The mechanic fed an endoscope into the engine to check for cracks.
3. A medical procedure in which such an instrument is used to examine an organ.
She had an endoscope scheduled to check her knee joint.
4. Any device that lets someone see inside a closed space using lenses or fiber optics.
Rescuers lowered an endoscope into the rubble to look for survivors.