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单词
usnic acid
释义
usnic acid
/us"nik/
,
Pharm.
an antibacterial substance, C
18
H
16
O
7
, derived from lichens of the genus
Usnea.
[
1840-50; < NL
Usn
(
ea
) USNEA + -IC
]
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更新时间:2025/6/24 3:46:31