Definition of toxicant in English:

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Pronunciation: /ˈtɒksɪk(ə)nt/


A toxic substance introduced into the environment, e.g. a pesticide.
Example sentences
  • Human beings are exposed to a wide variety of environmental toxicants or carcinogens and there exists an inter-individual variation in sensitivity to a particular toxicant to which they are exposed.
  • They are more heavily exposed to toxicants in the environment because, pound for pound, they eat more food, drink more water, and breathe more air than adults.
  • Therefore, D. melanogaster can be a sentinel organism for long-term release of toxicants into the environment.


Late 19th century: variant of intoxicant, differentiated in sense.

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