| / English Dictionary |
POISONOUS SUBSTANCE
| Pronunciation (US): |  | (GB): | |
I. (noun)
Sense 1
Meaning:
Any substance that causes injury or illness or death of a living organism
Synonyms:
poison; poisonous substance; toxicant
Classified under:
Hypernyms ("poisonous substance" is a kind of...):
substance (a particular kind or species of matter with uniform properties)
Hyponyms (each of the following is a kind of "poisonous substance"):
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)
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