a rotating neutron star that emits electromagnetic radiation, esp. radio waves, at short and very regular intervals: abbrev. PSR
Origin of pulsarpuls(e) + -ar
Any of several celestial objects emitting periodic, short, intense bursts of radio, x-ray, or visible electromagnetic radiation, generally believed to be quickly rotating neutron stars.
Origin of pulsarFrom puls(ating st)ar (influenced by quasar )