somnifacient

adjective

som·​ni·​fa·​cient ˌsäm-nə-ˈfā-shənt How to pronounce somnifacient (audio)
somnifacient noun

Word History

Etymology

Latin somnus sleep + English -facient

First Known Use

circa 1890, in the meaning defined above

Time Traveler
The first known use of somnifacient was circa 1890

Dictionary Entries Near somnifacient

Cite this Entry

“Somnifacient.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/somnifacient. Accessed 12 Jul. 2024.

Medical Definition

somnifacient

1 of 2 adjective
som·​ni·​fa·​cient ˌsäm-nə-ˈfā-shənt How to pronounce somnifacient (audio)
: inducing sleep : hypnotic sense 1
a somnifacient drug

somnifacient

2 of 2 noun
: a somnifacient agent (as a drug) : hypnotic sense 1
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!