overstimulate

verb

over·​stim·​u·​late ˌō-vər-ˈstim-yə-ˌlāt How to pronounce overstimulate (audio)
overstimulated; overstimulating

transitive verb

: to stimulate to an excessive or abnormal degree
The ongoing presence of HIV overstimulates B cells, which are abundant in the lymph nodes, and keeps them in a state of chronic activation.Robert R. Redfield et al.
… a monetary system … that keeps government from overstimulating demand through excessive money creation.George Melloan
see also overstimulated
overstimulation noun
plural overstimulations
In fact, too much stability and routine may bore such a horse—and boredom can be just as stressful as overstimulation. Robert W. Bell, PhD

Examples of overstimulate in a Sentence

Recent Examples on the Web
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The puffer vest garment is insulated enough to keep your core warm, while allowing for unrestricted arm freedom and airflow — two things that are important for those who are easily overheated and overstimulated. Kayla Blanton, PEOPLE, 8 Dec. 2025 Sauces High-fat gravies made from pan drippings can overstimulate the gut and worsen symptoms, Moole said. Lucy Notarantonio, MSNBC Newsweek, 7 Dec. 2025 One theory is that heavy, long-term cannabis use overstimulates the body's cannabinoid system, triggering the opposite of marijuana's usual anti-nausea effect. Deirdre Bardolf, FOXNews.com, 29 Nov. 2025 If your child is neurodivergent or has sensory sensitivities, holiday festivities can be easily overstimulating. Sara Rowe Mount, Parents, 24 Nov. 2025 See All Example Sentences for overstimulate

Word History

First Known Use

1801, in the meaning defined above

Time Traveler
The first known use of overstimulate was in 1801

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Cite this Entry

“Overstimulate.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/overstimulate. Accessed 12 Dec. 2025.

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