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单词
protostar
释义
WordReference Random House Unabridged Dictionary of American English © 2024
pro•to•star
(prō
′
tō stär′),
USA pronunciation
n.
[
Astron.
]
Astronomy
an early stage in the evolution of a star, after the beginning of the collapse of the gas cloud from which it is formed, but before sufficient contraction has occurred to permit initiation of nuclear reactions at its core.
proto
- +
star
1945–50
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proclus
procne
proconsul
proconsular
proconsularly
proconsulate
procopius
procrastinate
procrastinatingly
procrastination
procrastinatively
procrastinativeness
procrastinator
procreant
procreate
procreation
procreative
procreativeness
procreator
procrustean
procrustes
procryptic
procryptically
proct-
proctitis
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更新时间:2026/5/26 21:32:31