opacate
动词 v.
英文释义
动词 v.
-
To darken; to cloud.
— […] when the same corpuscles, upon the unstopping of the glass, were put into a new motion, and disposed after a new manner, they did opacate that part of the air they moved in.
词源
Borrowed from Latin opācātus, perfect passive participle of opācō, see -ate (verb-forming suffix).
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数据来源: Wiktionary