Chronic toxicity test definition

Chronic toxicity test means a toxicity test which measures a sublethal effect such as failed fertilization, development, growth, or reproduction. Organism survival is also a measured endpoint in some chronic toxicity tests.
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Chronic toxicity test. ’ means a method used to determine the con- centration of a substance that produces an adverse effect from prolonged expo- sure of an organism to that substance. In this test, mortality, number of young per female and growth are used as measures of chronic toxicity.
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Related to Chronic toxicity test

  • Chronic toxicity means concurrent and delayed adverse effects that occur only as a result of a chronic exposure.

  • Genetic test means an analysis of human DNA, RNA, chromosomes, proteins, or metabolites, that detect genotypes, mutations, or chromosomal changes. The term “genetic test” does not mean an analysis of proteins or metabolites that does not detect genotypes, mutations, or chromosomal changes; or an analysis of proteins or metabolites that is directly related to a manifested disease, disorder, or pathological condition that could reasonably be detected by a health care professional with appropriate training and expertise in the field of medicine involved.

  • Acute toxicity means concurrent and delayed adverse effects that result from an acute exposure and occur within any short observation period, which begins when the exposure begins, may extend beyond the exposure period, and usually does not constitute a substantial portion of the life span of the organism.

  • Low-level radioactive waste or “waste” means radioactive waste that is not classified as high-level radioactive waste and that is Class A, B, or C low-level radioactive waste as defined in 10 C.F.R. §61.55, as that section existed on January 26, 1983. “Low-level radioactive waste” or “waste” does not include any such radioactive waste that is owned or generated by the United States department of energy; by the United States navy as a result of the decommissioning of its vessels; or as a result of research, development, testing, or production of an atomic weapon.

  • Chronic abuse or "chronic sexual abuse" means recurring acts of physical abuse that place the