Definition of "laser"

laser¹

/ˈleɪz.ə(ɹ)/

noun
countable and uncountable, plural lasers
1. A device that produces a monochromatic, coherent beam of light.
2. A beam of light produced by such a device; a laser beam.
3. A laser printer.
  Quotations
  The bad news is that nearly every color laser is too big to share a desk with comfortably.
  2004 May 18, PC Mag, volume 23, number 9, page 117
4. (uncountable, medicine) Ellipsis of laser hair removal.
verb
third-person singular simple present lasers, present participle lasering, simple past and past participle lasered
1. (transitive) To cut, destroy or treat with a laser.
2. (sports, informal, transitive) To throw or kick with laser-like precision.
  Quotations
  None was any more sensational than No.6, a fantastic 27-23 last-gasp win over the Arizona Cardinals, cemented by a brilliant toe-sticking TD catch by Santonio Holmes in the back of the end zone with 35 seconds remaining on a pass lasered by quarterback Ben Roethlisberger.
  2009 February 2, Dave Perkins, “Steelers tiptoe past Cards”, in Toronto Star‎

laser²

/ˈleɪs.ə(ɹ)/

noun
plural lasers
1. A gum resin obtained from certain umbelliferous plants.
2. Such a plant.