| 单词 | somniferous |
| 释义 | somnifacient /som-ni-fāˈshənt or -shi-ənt/adjectiveSleep-inducing or promoting (also somnifˈerous or somnifˈic) nounA somnifacient drug ORIGIN: L somnus sleep, and faciens, facientis prp of facēre to do |
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