hyperarousal

noun

hy·​per·​arous·​al ˌhī-pər-ə-ˈrau̇-zəl How to pronounce hyperarousal (audio)
variants or hyper-arousal
medical
: excessive arousal : an abnormal state of increased responsiveness to stimuli that is marked by various physiological and psychological symptoms (such as increased levels of alertness and anxiety and elevated heart rate and respiration)
Although insomnia is considered a sleep disorder, its pathophysiology suggests hyperarousal during sleep and wakefulness.Daniel J. Buysse
To be given a diagnosis of PTSD, a person has to have been exposed to an extreme stressor or traumatic event to which he or she responded with fear, helplessness, or horror and to have three distinct types of symptoms consisting of reexperiencing of the event, avoidance of reminders of the event, and hyperarousal for at least one month.Rachel Yehuda

Examples of hyperarousal in a Sentence

Recent Examples on the Web Adolescents are known to have this type of hyperarousal. Kristen Rogers, CNN, 18 Feb. 2022

These examples are programmatically compiled from various online sources to illustrate current usage of the word 'hyperarousal.' 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

1969, in the meaning defined above

Time Traveler
The first known use of hyperarousal was in 1969

Dictionary Entries Near hyperarousal

Cite this Entry

“Hyperarousal.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperarousal. Accessed 13 Apr. 2024.

Medical Definition

hyperarousal

noun
hy·​per·​arous·​al ˌhī-pə-rə-ˈrau̇-zəl How to pronounce hyperarousal (audio)
variants or hyper-arousal
: excessive arousal : an abnormal state of increased responsiveness to stimuli that is marked by various physiological and psychological symptoms (as increased levels of alertness and anxiety and elevated heart rate and respiration)
Although insomnia is considered a sleep disorder, its pathophysiology suggests hyperarousal during sleep and wakefulness.Daniel J. Buysse
Symptoms of hyperarousal refer to physiological manifestations, such as insomnia, irritability, impaired concentration, hypervigilance, and increased startle reactions.Rachel Yehuda
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!