toxicity (redirected from toxicity rating)

toxicity /tox·ic·i·ty/ (tok-sis´i-te) the quality of being poisonous, especially the degree of virulence of a toxic microbe or of a poison.

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O2 toxicity , oxygen toxicity serious, sometimes irreversible, damage to the pulmonary capillary endothelium associated with breathing high partial pressures of oxygen for prolonged periods.

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tox·ic·i·ty (tk-ss-t)

n.

1. The quality or condition of being toxic.

2. The degree to which a substance is toxic.

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toxicity,

n the poisonous characteristics of a substance.

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toxicity (toksis´itē),

n the ability of a drug or poison to produce harm, especially to cause permanent injury or death. Usually distinguished from
allergenic properties.

toxicity, acute,

n a condition produced after short-term use of a toxic agent. See also dose, lethal, median; dose, lethal, minimum.

toxicity, chronic,

n a condition produced after long-term use of a toxic agent.

toxicity, fluoride,

n See fluoride toxicity.

Toxic shock syndrome.

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toxicity

the characteristic or quality of being poisonous, especially the degree of virulence of a toxic microbe or of a poison. See also toxicosis.

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toxicity rating

includes slightly toxic (with an oral LD₅₀ in rats of 5000 to 15,000 mg/kg) up to supertoxic (with an LD₅₀ of less than 5 mg/kg).

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toxicity The sum of adverse effects 2º to exposure to a toxic substance, by mouth, through the skin or respiratory tract. See Amalgam toxicity, Botanical toxicity, Developmental toxicity, Digitalis/digoxin toxicity, Diphtheria toxicity, Excitotoxicity, Hashitoxicosis, Immunologic toxicity, Neurotoxicity, Nickel toxicity, Oxygen toxicity, Reproductive toxicity, Vitamin A toxicity.