hyperexcitable

adjective

hy·​per·​ex·​cit·​able ˌhī-pər-ik-ˈsī-tə-bəl How to pronounce hyperexcitable (audio)
variants or hyper-excitable
: extremely or excessively excitable
hyperexcitable children
Dr. Walters believes that for a nerve cell to become hyperexcitable when it or its neighbor has been injured makes evolutionary sense.Natalie Angier
hyperexcitability noun
or hyper-excitability
hyperexcitability of motor neurons
a medication that can cause hyperexcitability

Examples of hyperexcitable in a Sentence

those hyperexcitable contestants on TV game shows who celebrate winning by jumping up and down uncontrollably
Recent Examples on the Web
These examples are automatically compiled from online sources to illustrate current usage. Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback about these examples.
The synesthesia is locked in, and the hyperexcitable visual cortex no longer drives it. Elizabeth Preston, Discover Magazine, 18 Nov. 2011

Word History

First Known Use

1870, in the meaning defined above

Time Traveler
The first known use of hyperexcitable was in 1870

Dictionary Entries Near hyperexcitable

Cite this Entry

“Hyperexcitable.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/hyperexcitable. Accessed 10 Nov. 2024.

Last Updated: - Definition revised
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