toxicant

Noun
  1. Any substance that causes injury or illness or death of a living organism (synset 115056943)
    is a type of: substance - a particular kind or species of matter with uniform properties
    subtypes:
    • atropine - a poisonous crystalline alkaloid extracted from the nightshade family; used as an antispasmodic and to dilate the eye pupil; also administered in large amounts as an antidote for organophosphate nerve agents or organophosphate insecticides
    • hyoscyamine - a poisonous crystalline alkaloid (isometric with atropine but more potent); used to treat excess motility of the gastrointestinal tract
    • toxin - a poisonous substance produced during the metabolism and growth of certain microorganisms and some higher plant and animal species
    same as: poison, poisonous substance
Adjective
  1. Having the qualities or effects of a poison (synset 302459585)
    similar to: toxic - of or relating to or caused by a toxin or poison
    same as: poisonous

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