Definitions from Wiktionary (protoplanetary disk)
▸ noun: (astronomy) A rotating disk of dense gas and dust surrounding a young newly formed star, and from which planets may be formed.
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▸ noun: (astronomy) A rotating disk of dense gas and dust surrounding a young newly formed star, and from which planets may be formed.
Similar:
protoplanetary disc,
circumplanetary disk,
planetesimal,
protoplanet,
planetary ring,
planetary object,
ring,
Alderson disk,
accretion disk,
photodisk,
more...
Opposite:
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