Catalyst

ahd-5
  • noun. A substance, usually used in small amounts relative to the reactants, that modifies and increases the rate of a reaction without being consumed in the process.
  • noun. One that precipitates a process or event, especially without being involved in or changed by the consequences.
    • The Century Dictionary and Cyclopedia
  • noun. In physical chemistry Same as catalytic agent (which see).
    • the GNU version of the Collaborative International Dictionary of English
  • noun. a substance that initiates or accelerates a chemical reaction without itself being affected.
  • noun. something that serves as a precipitating occasion for an event.
  • noun. something or someone that causes events to happen with itself being changed.
    • Wiktionary, Creative Commons Attribution/Share-Alike License
  • noun. A substance that increases the rate of a chemical reaction without being consumed in the process.
  • noun. Someone or something that encourages progress or change.
  • noun. A catalytic converter.
    • WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
  • noun. something that causes an important event to happen
  • noun. (chemistry) a substance that initiates or accelerates a chemical reaction without itself being affected
    • Antonyms
    Words with the opposite meaning
    inhibitor  
    Hypernym
    Words that are more generic or abstract
    causal agency  causal agent  cause  
    Rhyme
    Words with the same terminal sound
    philatelist  
    Same Context
    Words that are found in similar contexts
    additive  bromide  catalysis  constituent  contaminant  
    Synonym
    Words with the same meaning
    agent  agent provocateur  agitator  agitprop  alterant  
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