| 单词 |
planetesimal hypothesis |
| 释义 |
planetesimal hypothesis
planetesimal hypothesisn. The hypothesis that the planets and satellites of the solar system were formed by gravitational aggregation of planetesimals.planetesimal hypothesis (ˌplænɪˈtɛsɪməl) n (Astronomy) the discredited theory that the close passage of a star to the sun caused many small bodies (planetesimals) to be drawn from the sun, eventually coalescing to form the planets[C20: planetesimal, from planet + infinitesimal]Thesaurus| Noun | 1. | planetesimal hypothesis - (cosmology) the theory that the solar system was formed by the gravitational accumulation of planetesimalsscientific theory - a theory that explains scientific observations; "scientific theories must be falsifiable"cosmogeny, cosmogony, cosmology - the branch of astrophysics that studies the origin and evolution and structure of the universe |
planetesimal hypothesis
Related to planetesimal hypothesis: nebular hypothesis, Planetesimal theoryWords related to planetesimal hypothesisnoun (cosmology) the theory that the solar system was formed by the gravitational accumulation of planetesimalsRelated Words- scientific theory
- cosmogeny
- cosmogony
- cosmology
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