microscope

noun
UK /ˈmaɪ.krə.skəʊp/
US /ˈmaɪ.krə.skoʊp/

A tool that makes tiny things look big so you can see them.

We used a microscope to look at the tiny bugs in the water.


OTHER MEANINGS

2. A careful, detailed way of examining something very closely.

The detective put the strange letter under a microscope.

3. A school subject or activity in which students use microscopes to study small things.

In science class, we have microscope work every Friday.

4. Any instrument that uses lenses to make very small objects visible.

The doctor looked at the blood sample through a microscope.