magnifier

noun
UK /ˈmæɡ.nɪ.faɪ.ər/
US /ˈmæɡ.nə.faɪ.ɚ/

A magnifier is a tool that makes small things look bigger.

She used a magnifier to look at the tiny bug on the leaf.


OTHER MEANINGS

2. A device or software feature that enlarges part of a screen for easier viewing.

He turned on the screen magnifier to read the small text.

3. A lens or combination of lenses that increases the apparent size of an object.

The jeweler checked the diamond with a small magnifier.

4. A person or thing that makes something seem greater or more important.

Some say the news acted as a magnifier of public fear.