Meaning & use
Collapsar
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An older scientific term for a massive star that has collapsed under its own gravity, now generally referred to as a black hole.
See it in a sentence
Early 20th-century physicists used the term collapsar before 'black hole' became standard.
The novel's plot revolved around a spacecraft venturing near a collapsar.
A note on using this word
The term 'collapsar' largely fell out of scientific use after physicist John Wheeler popularized 'black hole' in the late 1960s, though it still appears in science fiction.
Words with a similar meaning
black hole
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