Definitions
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- adjective astronomy Describing the conditions prior to the formation of the
solar system , or describing theprotostar that became thesun
Etymologies
from Wiktionary, Creative Commons Attribution/Share-Alike License
proto- + solar
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Examples
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Based on the data, some scientists theorized that the protosolar system was destroyed when a subspace compression collided with the Trifid star, causing it to go supernova and eject most of its mass.
The Best and The Brightest SUSAN WRIGHT 1998
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