😴 - Sleeping Face Emoji - Emoji by Dictionary.comRead more in this article about some frequently asked questions and fun facts related to our definitions.
Scientists discover a fish they name “dracula.” What’s the origin of the word, and does the fish sleep in a coffin?Scientists recently released a list of new species that were discovered in the Greater Mekong Region, which comprises parts of Cambodia, Laos, Myanmar, Thailand, Vietnam, and China. One of the more peculiar species on the list is a translucent fish that scientists call “dracula.” The fish actually was first found in 2009, in a fish tank in Britain, but was only discovered in the wild …
Compare REM sleep.
Origin of NREM sleep
1960–65; n(on-)r(apid) e(ye) m(ovement)
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019
See non-REM sleep.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.