Toxicology Vocab

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Poison

Natural / manufactured chemicals that can cause harm

Toxicity

Capacity of a chemical to produce injury

Toxin

Naturally occuring substance that causes harm

Toxicology

The study of substances that can cause harm

Absorption

The process of a substance entering the body

Acute Toxicity

Harmful effects from a single substance / short-term exposure

Antagonism

Two chemicals administered together interfere with each other's actions or one interferes with the action of the other

Chelating Agent

A substance that binds to metals to remove them from the body

Chronic Exposure

Repeated exposures, generally to lower levels, over a long time

Half-life

The time it takes for a substance to break down

Isotopes

Atoms of the same element with different numbers of neutrons

LD50

the amount of a chemical that kills 50% of the test population

Microgram

one millionth of a gram

Nystagmus

Involuntary rapid eye movements

Stimulant

A substance that raises levels of physiological or nervous activity in the body.

Synergism

When 2 substances together create a stronger effect

Venom

A toxin injected by an animal