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单词
pyrazolone
释义
WordReference Random House Unabridged Dictionary of American English © 2024
py•raz•o•lone
(pi raz
′
ə lōn′, pī-),
USA pronunciation
n.
[
Chem.
]
Chemistry
any of the group of heterocyclic compounds containing the pyrazoline ring in which one carbon atom is doubly linked to an oxygen atom not in the ring.
Chemistry
the parent compound, C
3
H
4
N
2
O.
pyrazole
+ -
one
1885–90
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更新时间:2025/8/1 5:30:07