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单词 somnific
释义

WordReference Random House Unabridged Dictionary of American English © 2024
som•nif•ic  (som nif′ik, səm-),USA pronunciation adj. 
  1. Drugscausing sleep;
    soporific;
    somniferous.
  • Latin somnificus causing sleep, equivalent. to somni-, combining form of somnus sleep + -ficus -fic
  • 1715–25

WordReference Random House Unabridged Dictionary of American English © 2024
som•nif•er•ous  (som nif′ər əs, səm-),USA pronunciation adj. 
  1. Drugsbringing or inducing sleep, as drugs or influences.
  • Latin somnifer inducing sleep (somni-, combining form of somnus sleep + -fer -fer) + -ous
  • 1595–1605
som•nif′er•ous•ly, adv. 

Collins Concise English Dictionary © HarperCollins Publishers::
somniferous /sɒmˈnɪfərəs/, somnific adj
  1. rare tending to induce sleep
Etymology: 17th Century: from Latin somnifer (from somnus sleep + ferre to do) + -ous
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更新时间：2025/2/23 15:12:51