BioScience Dictionary

 
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Found Chronic toxicity 2 times.

Displaying results 1 to 10.

1. Chronic toxicity
Adverse effects occurring as a result of repeated dosing with a chemical on a daily basis, or exposure to the chemical, for a large part of an organism's lifespan (usually more than 50%). With experimental animals, this usually means a period of exposure of more than 3 months. Chronic exposure studies over 2 years using rats or mice are used to assess the carcinogenic potential of chemicals. See carcinogenicity .

2. Chronic toxicity
Illness caused by repeated or long-term exposure to low doses of a toxic substance; compare acute toxicity .