Our Sleep Main Article provides a comprehensive look at the who, what, when and how of Sleep
Definition of Somnolence
Somnolence: Sleepiness, the state of feeling drowsy, ready to fall asleep. A person experiencing somnolence is somnolent and is acting somnolently.
Somnolence, somnolent, and somnolently go back to the Latin "somnus" meaning (please don't yawn) "sleep."
Last Editorial Review: 6/14/2012
Back to MedTerms online medical dictionary A-Z List
Need help identifying pills and medications?