Definition of collapsar in English:


Line breaks: col|lap¦sar
Pronunciation: /kəˈlapsɑː


  • An old star that has collapsed under its own gravity to form a white dwarf, neutron star, or black hole.
    More example sentences
    • Two papers scheduled for an upcoming Astrophysical Journal Letters appear to support the collapsar model.
    • Still, the collapsar is an extremely attractive model that fits a wide range of observed gamma-ray bursts.
    • Pruet and his colleagues are also investigating whether collapsars might be the sources of other elements as well.


late 20th century: from collapse, on the pattern of words such as pulsar.

More definitions of collapsar

Definition of collapsar in:

Get more from Oxford Dictionaries

Subscribe to remove adverts and access premium resources

Word of the day razz
Pronunciation: raz
tease (someone) playfully