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planetesimal
3 dictionary results for: planetesimal hypothesis
Dictionary.com Unabridged (v 1.1) - Cite This Source - Share This
[plan-i-tes-uh-muh
l] 
Astronomy
plan⋅e⋅tes⋅i⋅mal
[plan-i-tes-uh-muhl] Astronomy
–noun
–adjective
| 1. | one of the small celestial bodies that, according to one theory (planetesimal hypothesis), were fused together to form the planets of the solar system. |
| 2. | of or pertaining to a planetesimal or planetesimals. |
Dictionary.com Unabridged (v 1.1)
Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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Based on the Random House Unabridged Dictionary, © Random House, Inc. 2006.
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American Heritage Dictionary - Cite This Source - Share This
| planetesimal hypothesis
n. The hypothesis that the planets and satellites of the solar system were formed by gravitational aggregation of planetesimals. |
The American Heritage® Dictionary of the English Language, Fourth Edition
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
Copyright © 2006 by Houghton Mifflin Company.
Published by Houghton Mifflin Company. All rights reserved.
Cite This Source
WordNet - Cite This Source - Share This
| planetesimal hypothesis | |
noun | |
| (cosmology) the theory that the solar system was formed by the gravitational accumulation of planetesimals |
WordNet® 3.0, © 2006 by Princeton University.
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