pulsarpul‧sar /ˈpʌlsɑː $ -sɑːr/ noun [countable] 
Word Origin
Word OriginWORD ORIGINpulsar
ExamplesOrigin:
1900-2000 pulse + -ar (as in quasar)EXAMPLES FROM THE CORPUS
Thesaurus- A total of 112 pulse arrival times over a 120-day time interval were collected for this pulsar.
- A variant of the suggestion is that the Sun has a pulsar as a companion.
- At present, parallax measurements for pulsars are few and barely significant.
- It is therefore another compact star, perhaps even a pulsar.
- One of the pulsar's original discoverers, Stanislav Djorjovski, reported finding a brighter star coinciding with the pulsar last November.
- Subsequent timing observations have shown the pulsar to be in a 5.74-day circular orbit with a low-mass companion.
- The pulsar is probably a different object.
- The observation of slowing down of the orbital rotation of the binary pulsar 1913+16 is also discussed.
THESAURUSin the sky► star
Collocations a large ball of burning gas in space, which can be seen at night as a point of light in the sky: · The dark night sky was clear and full of stars.
► planet one of the large objects that goes around the Sun, for example the Earth, Saturn, Mercury, or Mars: · The planet Uranus was discovered in 1781.
► sun the star that gives us light and heat, around which the planets move. There are also many millions of other suns in the universe: · The sun came out from behind a cloud.· a dying sun
► moon the round object that moves around the Earth every 28 days, or a similar object that goes around another planet: · The moon rose in the night sky.· Titan is one of the moons of Saturn.
► asteroid a mass of rock that moves around the sun. Most asteroids are found between Jupiter and Mars: · the asteroid belt
► pulsar a type of star that is far away in space and produces radiation and radio waves
► quasar an object like a star that is far away in space and shines extremely brightly
► supernova a very large exploding star
► constellation a group of stars that forms a particular pattern and has a name: · The constellation of Orion is one of the most easily recognizable patterns of stars in the night sky.
► galaxy one of the large groups of stars that make up the universe: · Astronomers have detected a galaxy 11 billion light years away.
► the universe all space, including all the stars and planets: · How many planets in the universe have life?
COLLOCATIONS FROM THE CORPUSNOUN► millisecond
an object like a star that is far away in space and produces radiation and radio waves → quasar· It is possible to detect individual pulses from this millisecond pulsar with high signal-to-noise ratio in unbroken trains.· In the standard formation model, millisecond pulsars are formed when a neutron star accretes matter from an evolving companion.