Definition of laser pointer in English:

Share this entry

laser pointer

Entry from US English dictionary

noun

A pen-shaped pointing device that contains a small diode laser that emits an intense beam of light, used to direct attention during presentations.
Example sentences
  • The car did not slow down when signaled by a U.S. soldier holding a search light and laser pointer.
  • Pulses also exhibit diffraction - spreading perpendicular to their propagation direction - just as a laser pointer's beam gets wider on the way to a distant screen.
  • Also, some dogs enjoy ‘chasing’ the beam from a laser pointer.
Share this entry
 

What do you find interesting about this word or phrase?

Comments that don't adhere to our Community Guidelines may be moderated or removed.