mirroringtool

noun
UK /ˈmɪrərɪŋ tuːl/
US /ˈmɪrərɪŋ tuːl/

A mirroring tool is a thing that makes a copy of something so you can see or use it in another place.

The teacher used a mirroring tool to show her tablet screen on the big classroom screen.


OTHER MEANINGS

2. A software feature that copies one device's screen onto another device.

He turned on the mirroring tool so everyone could watch the video on the TV.

3. A backup tool that keeps an exact copy of files in a second location.

The mirroring tool saved an identical copy of her photos on the external drive.

4. A testing tool that repeats the same input to check a program behaves the same way.

The mirroring tool sent the same clicks again to confirm the bug appeared twice.