a pill or capsule containing a drug for inducing sleep.
😴 - Sleeping Face Emoji - Emoji by Dictionary.comRead more in this article about some frequently asked questions and fun facts related to our definitions.
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- sleeping beauty,
- sleeping car,
- sleeping chair,
- sleeping draught,
- sleeping partner,
- sleeping policeman,
- sleeping porch,
- sleeping sickness,
Origin of sleeping pill
First recorded in 1940–45
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
a pill or tablet containing a sedative drug, such as a barbiturate, used to induce sleep
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012