Certain toxin Synonyms

Definitions for Certain


  • (adjective) known but not named
  • (adjective) having or showing a mind free from doubt
  • (adjective) having been established and usually not subject to change

Definitions for Toxin


  • (noun) a substance that by chemical action can kill or injure a living thing
  • (noun) a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species