Toxicology

Toxicology

A branch of biology, chemistry, and medicine concerned with the study of the adverse effects of chemicals or physical agents on living organisms, as well as the symptoms, mechanisms, treatments and detection of poisoning, especially the poisoning of people.

Industry: Biology; Chemistry

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Toxicology

Toxicity exposure ratio (TER)

Biology; Toxicology

Ratio of the measure of the effects (e.g., LD50, LC50, NOEC) to the estimated exposure. Note: It is the reciprocal of a risk quotient or hazard quotient.

Toxicity equivalency factor (TEF, f)

Biology; Toxicology

Ratio of the toxicity of a chemical to that of another structurally related chemical (or index compound) chosen as a reference.

Point mutation

Biology; Toxicology

Reaction that changes a single base pair in DNA.

Safety data sheet

Biology; Toxicology

Single page giving toxicological and other safety advice, usually associated with a particular preparation, substance or process.

Specimen

Biology; Toxicology

Specifically selected portion of any substance, material, organism (specifically tissue, blood, urine or faeces) or environmental medium assumed to be representative of the parent substance etc. at ...

Toxicophoric group

Biology; Toxicology

Structural moiety that upon metabolic activation exerts toxic effects: the presence of a toxicophoric group indicates only potential and not necessarily actual toxicity of a drug or other substances.