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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.

Contributors in Toxicology

Toxicology

Relative excess risk (RER)

Biology; Toxicology

Measure that can be used in comparison of adverse reactions to drugs, or other exposures, based solely on the component of risk due to the exposure or drug under investigation, removing the risk due ...

Rate (in epidemiology)

Biology; Toxicology

Measure of the frequency with which an event occurs in a defined population in a specified period of time. Note 1: Most such rates are ratios, calculated by dividing a numerator, e.g. the number of ...

Route of exposure

Biology; Toxicology

Means by which a toxic agent gains access to an organism by administration through the gastrointestinal tract (ingestion), lungs (inhalation), skin (topical), or by other routes such as intravenous, ...

Semipermeable (selectively or differentially permeable) membrane

Biology; Toxicology

Membrane that will preferentially allow certain molecules or ions to pass through it while preventing the passage of others.

Suggested no adverse response level (SNARL)

Biology; Toxicology

Maximum dose or concentration that on current understanding is likely to be tolerated by an exposed organism without producing any harm.

Toxicologically based pharmacokinetic modelling (tbpk)

Biology; Toxicology

Mathematical modelling of kinetic behaviour of a substance, based on measured physiological parameters.

Short-term exposure limit (STEL)

Biology; Toxicology

Fifteen minute time weighted average (TWA) exposure recommended by ACGIH which should not be exceeded at any time during a workday, even if the 8-hour TWA is within the threshold limit ...

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