: pain resulting from a stimulus (such as a light touch of the skin) which would not normally provoke pain
also : a condition marked by such pain

Examples of allodynia in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
With allodynia, normally nonpainful stimuli — like brushing your hair, wearing a hat or a loose ponytail, and feeling water wash over your hair in the shower — become painful. Grace Gold, Allure, 23 Jan. 2024 The processing of these messages and decisions can go awry, including in people with the condition known as allodynia, in which even a gentle touch can be extremely painful, and in people who feel phantom pain after the amputation of a limb. Brian Owens, Discover Magazine, 14 Oct. 2021

Word History

Etymology

all- + -odynia "pain," borrowed from Greek -ōdynia (as in anōdynía "freedom from pain"), from odýnē "pain, torment" + -ia -ia entry 1 — more at anodyne entry 1

First Known Use

circa 1979, in the meaning defined above

Time Traveler
The first known use of allodynia was circa 1979

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Cite this Entry

“Allodynia.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/allodynia. Accessed 15 Apr. 2025.

Medical Definition

allodynia

noun
: pain resulting from a stimulus (as a light touch of the skin) which would not normally provoke pain
also : a condition marked by allodynia
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