A laser pointer is a pen that casts a bright dot to point at a screen. Wave a laser pointer.
The dot shakes visibly at any distance, which shows how much a hand actually moves. A laser pointer is banned near airports because the beam spreads enough to fill a cockpit.
1nounlaser pointerA pen that casts a bright dot to point at a screen.
“The laser pointer wandered around the slide like a nervous insect.”
laser pointer is a device.
Practised in Office & Admin