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Definition of Oort cloud
1. Noun. (astronomy) a hypothetical huge collection of comets orbiting the sun far beyond the orbit of Pluto; perturbations (as by other stars) can upset a comet's orbit and may send it tumbling toward the sun.
Category relationships: Astronomy, Uranology
Generic synonyms: Accumulation, Aggregation, Assemblage, Collection
Generic synonyms: Accumulation, Aggregation, Assemblage, Collection
Definition of Oort cloud
1. Proper noun. (astronomy) A roughly spherical region of space from 50,000 to 100,000 astronomical units (approximately 1 light year) from the sun; supposedly the source of most comets. ¹
¹ Source: wiktionary.com
Lexicographical Neighbors of Oort Cloud
Other Resources:
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