somnifacient

som·ni·fa·cient

 (sŏm′nə-fā′shənt)

adj.

Tending to produce sleep; hypnotic.

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som′ni·fa′cient n.

American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

somnifacient

(ˌsɒmnɪˈfeɪʃənt) med

n

(Medicine) a sleep-inducer

adj

(Medicine) inducing sleep

Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

som•ni•fa•cient

(ˌsɒm nəˈfeɪ ʃənt)

adj.

1. causing or inducing sleep.

n.

2. a drug or other agent that induces or tends to induce sleep.

[1885–90; < Latin somn(us) sleep + -i- -i- + -facient]

Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.

Thesaurus

somnifacient

adjective

Inducing sleep or sedation:

hypnotic, narcotic, opiate, sedative, sleepy, slumberous, somniferous, somnific, somnolent, soporific.

noun

Something that induces sleep or sedation:

hypnotic, narcotic, opiate, sedative, soporific.

The American Heritage® Roget's Thesaurus. Copyright © 2013, 2014 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.