Pronunciation: /ˈpʌlsɑr/
noun a celestial object, thought to be a rapidly rotating neutron star, that emits regular pulses of radio waves and other electromagnetic radiation
A1 A pulsar is a type of star that emits beams of radiation.
A2 Scientists use pulsars to study the properties of neutron stars.
B1 Astronomers discovered the first pulsar in 1967.
B2 Pulsars are known for their incredibly precise timekeeping abilities.
C1 The study of pulsars has provided valuable insights into the nature of space and time.
C2 Pulsars are often referred to as celestial lighthouses due to their rotating beams of radiation.
adjective pulsar (used to describe something related to or characteristic of pulsars)
A1 The pulsar light was so bright in the night sky.
A2 Scientists discovered a new pulsar star in the galaxy.
B1 The pulsar radiation emitted by the star was carefully studied by researchers.
B2 Astronomers used advanced technology to observe the pulsar signals.
C1 The pulsar phenomenon continues to fascinate astrophysicists around the world.
C2 The pulsar's unique characteristics make it a valuable subject for scientific research.
formal The astronomers observed a pulsar emitting regular pulses of radiation.
informal I read about this cool pulsar that sends out signals in space.
slang That pulsar is lit - it's like a cosmic lighthouse!
figurative Her energy and enthusiasm were like a pulsar, radiating positivity to everyone around her.
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