English Explanatory Dictionary

reactive

English dictionary entry

Meanings

adj
  1. That reacts or responds to a stimulus.
  2. That readily takes part in reactions.
  3. Characterized by induction or capacitance rather than resistance.
  4. Reacting to the past rather than anticipating the future, not predictive.

Pronunciation

/ɹiːˈæktɪv/ LL-Q1860 (eng)-Vealhurl-reactive.wav /ɹiˈæktɪv/ LL-Q1860 (eng)-Qwertygiy-reactive.wav /ɹiːˈɛktəv/

Word forms

reactive more reactive most reactive

Etymology

From react + -ive.

Antonyms

proactive

Derived words

adrenoreactive alloreactive aminoreactive antireactive autoreactive bioreactive C-reactive protein crossreactive hyperreactive hyporeactive immunofluororeactive immunoreactive monoreactive multireactive neuroreactive nonreactive nonreactively normoreactive over-reactive overreactive photoreactive polyreactive reactive armor reactive armour reactive arthritis reactive attachment disorder reactive centre reactive depression reactive distillation reactive dye reactive homeostasis reactive hyperemia reactive hypoglycemia reactive intermediate reactive ion etching reactive load reactively reactive lymphocyte reactive mind reactiveness reactive oxygen species reactive power reactive programming reactive schizophrenia reactive search reactivity seroreactive subreactive thermoreactive unreactive vasoreactive xenoreactive
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