rapid eye movement


: a rapid conjugate movement of the eyes associated especially with REM sleep

Examples of rapid eye movement in a Sentence

Recent Examples on the Web During a typical night, a person goes through four stages of sleep: stage 1 (initially falling asleep), stage 2 (light sleep), stage 3 (deep sleep, or slow-wave sleep), and rapid eye movement (REM) sleep, when the brain is particularly active. Nick Blackmer, Verywell Health, 7 Nov. 2023 The Department of Defense wants to see if anyone out there can control rapid eye movement (REM) sleep. Tim Newcomb, Popular Mechanics, 14 Aug. 2023 Sleep research has since proven that lucid dreaming occurs exclusively during rapid eye movement or REM sleep. USA TODAY, 11 July 2023 The constant interruption makes if difficult to get enough deep sleep and progress onto the final stage, called rapid eye movement or REM sleep, where dreams occur. Sandee Lamotte, CNN, 10 May 2023 Vivid dreams happen during the rapid eye movement phase of our sleep cycles. Elizabeth Gulino, refinery29.com, 14 Mar. 2022 For deep, rapid eye movement (REM) sleep, horses do lie down. Avery Hurt, Discover Magazine, 23 June 2023 According to the National Institutes of Health (NIH), sleep paralysis occurs during or while shifting out of rapid eye movement (REM) sleep, a stage in which some muscles are temporarily paralyzed—also known as muscle atonia. Kayla Blanton, SELF, 21 June 2023 When a person’s alarm clock goes off in the morning, they may be woken up from rapid eye movement (REM) sleep, Dr. Kansagra said. Julia Landwehr, Health, 27 Apr. 2023 See More

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'rapid eye movement.' Any opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.

Word History

First Known Use

1900, in the meaning defined above

Time Traveler
The first known use of rapid eye movement was in 1900

Dictionary Entries Near rapid eye movement

Cite this Entry

“Rapid eye movement.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/rapid%20eye%20movement. Accessed 11 Dec. 2023.

Kids Definition

rapid eye movement

: rapid movement of the eyes which occurs during the dreaming period of sleep

Medical Definition

rapid eye movement

rap·​id eye movement ˈrap-əd- How to pronounce rapid eye movement (audio)
: a rapid conjugate movement of the eyes associated especially with REM sleep

called also REM

More from Merriam-Webster on rapid eye movement

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