hyperreactive

adjective hy·per·re·ac·tive \ ˌhī-pər-rē-ˈak-tiv \
variants: or hyper-reactive

Definition of hyperreactive

: having or showing abnormally high sensitivity to stimuli
  • Because of their association with the trauma, many victims seem to be hyperreactive to sounds and sights other children don't respond to.
  • —Kate McGraw
  • … production of free radicals: hyper-reactive molecules that can attack proteins, nucleic acids, or lipids that have the misfortune to be nearby.
  • —Robert Taylor

hyperreactivity

play \ˌhī-pər-(ˌ)rē-ˌak-ˈti-və-tē\ or hyper-reactivity noun
    • hyperreactivity of airways in asthma
    • sensory hyper-reactivity

First Known Use of hyperreactive

1932

in the meaning defined above

See Words from the same year
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Medical Dictionary

hyperreactive

adjective hy·per·re·ac·tive \ -rē-ˈak-tiv \
variants: also hyper-reactive

medical Definition of hyperreactive

: having or showing abnormally high sensitivity to stimuli
  • Because of their association with the trauma, many victims seem to be hyperreactive to sounds and sights other children don't respond to.
  • —Kate McGraw, The News Journal (Wilmington, Delaware)29 Apr. 2009
  • Interior surface cells of the bronchial passages were destroyed and the airways became hyper-reactive to outside stimuli.
  • —Harold M. Schmeck, Jr., The New York Times31 Jan. 1989

hyperreactivity

play \-(ˌ)rē-ˌak-ˈtiv-ət-ē\ also hyper-reactivity noun, plural hyperreactivities
    • bronchial hyperreactivity

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