from The American Heritage® Dictionary of the English Language, 5th Edition.
- noun The implosion of a star or other celestial body under the influence of its own gravity, resulting in a body that is many times smaller and denser than the original body.
- noun The process by which stars, star clusters, and galaxies form from interstellar gas under the influence of gravity.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun The
stagein the evolutionof a starin which the pressureof the star is insufficientto maintain it at a stable size, and its material falls inward under its own gravitational attraction, eventually forming a black holeor a neutron star, and sometimes accompanied by a supernova explosion.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- noun the implosion of a star resulting from its own gravity; the result is a smaller and denser celestial object
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