Definition of "pulsar" [pulsar]

• Any of several celestial radio sources emitting short intense bursts of radio waves, x-rays, or visible electromagnetic radiation at regular intervals, generally believed to be rotating neutron stars. (noun)

American Heritage(R) Dictionary of the English Language, Fifth Edition. Copyright (c) 2011 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

• "BTW, it doesn't matter if the pulsar is moving away."
• "Sun. Pulsars: A pulsar is a rapidly rotating neutron star with a strong magnetic field."
• "A pulsar is a rapidly rotating neutron star with a strong magnetic field."