noun
- rapidly rotating neutron stars that emit regular pulses of electromagnetic radiation
Usage: astronomy
Examples
- Astronomers discovered the first pulsar in 1967.
- Pulsars rotate hundreds of times per second.
- The lighthouse-like beams from pulsars sweep across space.
- Scientists use pulsars as cosmic clocks due to their precise timing.
- Some pulsars emit radio waves that can be detected on Earth.
- The Crab Nebula contains a famous pulsar formed from a supernova explosion.