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somnifacient
释义
WordReference Random House Unabridged Dictionary of American English © 2024
som•ni•fa•cient
(som′nə fā
′
shənt),
USA pronunciation
adj.
causing or inducing sleep.
n.
Drugs
a drug or other agent that induces or tends to induce sleep.
Latin
somn
(
us
) sleep +
-i-
-
i
- + -
facient
1885–90
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更新时间:2026/8/17 3:00:45