noun
Meaning 1
responsiveness to stimulation
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Standard Lemma guide
reactivity
Definitions and examples are grouped by meaning. Pronunciation, history, word forms, translations, descendants, synonyms, antonyms, derived terms, and related words appear whenever the source provides them.
Sound
Pronunciation
Each Play button uses your device's default local English voice, or a natural local fallback. The selected voice name appears after playback. This is synthesized speech, not a source recording.
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/rɪˈakˈtɪvɪti/
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US: Recorded audio is listed in the source snapshot.
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CMU ARPABET: R IY2 AE2 K T IH1 V AH0 T IY0 Digits mark lexical stress: 1 primary, 2 secondary, 0 unstressed.
noun
Meaning 2
relative susceptibility to chemical reaction
Definition source: English Wiktionary via Wiktextract
Usage: countable, uncountable
Topics: chemistry, natural-sciences, physical-sciences
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
noun
Meaning 3
responsive to stimulation
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: responsiveness
Antonyms: none provided
Broader terms: sensitivity, sensitiveness, sensibility
Narrower terms: excitability, irritability
noun
Meaning 4
ready susceptibility to chemical change
Definition source: Princeton WordNet 3.0
No example sentence was provided for this meaning.
Meaning relationships
Synonyms: none provided
Antonyms: none provided
Broader terms: susceptibility, susceptibleness
History
Etymology
Etymology tree English react Proto-Indo-European *-wós Proto-Indo-European *-iHwósder. Latin -īvus Old French -ifbor. Middle English -yf English -ive English reactive Proto-Indo-European *-teh2 Proto-Indo-European *-ts Proto-Indo-European *-teh2ts Latin -itāsder. Old French -itebor. Middle English -ite English -ity English reactivity From reactive + -ity.
Across languages
Translations
13 source translations are retained for this English entry.
- Bulgarian: реактивност (reaktivnost) — relative susceptibility to chemical reaction
- Finnish: reaktiivisuus — relative susceptibility to chemical reaction
- French: réactivité — relative susceptibility to chemical reaction
- Galician: reactividade — relative susceptibility to chemical reaction
- Irish: imoibríocht — relative susceptibility to chemical reaction
- Māori: kaha hohenga — relative susceptibility to chemical reaction
- Norwegian Bokmål: reaktivitet — relative susceptibility to chemical reaction
- Norwegian Nynorsk: reaktivitet — relative susceptibility to chemical reaction
- Occitan: reactivitat — relative susceptibility to chemical reaction
- Polish: aktywność — relative susceptibility to chemical reaction
- Swedish: reaktivitet — relative susceptibility to chemical reaction
- Tagalog: kabalibilusan — relative susceptibility to chemical reaction
- Welsh: adweithedd — relative susceptibility to chemical reaction
Real reading context