| ATA | alimentary toxic aleukia; American Thyroid Association; aminotriazole; antithymic activity; antithyr... |
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| ATE | acute toxic encephalopathy; adipose tissue extract; autologous tumor extract |
| ATSDR | Agency for Toxic Substances and Disease Registry |
| ITS | infective toxic shock |
| LETD | lowest effective toxic dose |
| toxic amblyopia | Blindness due to optic neuritis caused by methyl alcohol, lead, arsenic, quinine, or other poisons. (05 Mar 2000) |
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| toxic anaemia | Any anaemia resulting from the destructive effects of a chemical, metabolic poison, bacterial toxin, venom, and similar materials. (05 Mar 2000) |
| toxic cataract | A cataract caused by drugs or chemicals. (05 Mar 2000) |
| toxic cirrhosis | Cirrhosis of the liver resulting from chronic poisoning, as by lead or carbon tetrachloride. (05 Mar 2000) |
| toxic cyanosis | Cyanosis due to methemoglobin formation resulting from the action of certain drugs, e.g., nitrites. (05 Mar 2000) |
| toxic delirium | Delirium caused by the action of a poison. (05 Mar 2000) |
| toxic effect | <physiology> The physiologic, physical or laboratory manifestations or derangement that can be attributed to the presence of a substance within the body. (12 Jan 1998) |
| toxic epidermal necrolysis | A syndrome in which a large portion of the skin becomes intensely erythematous with epidermal necrosis, and peels off in the manner of a second-degree burn, often simultaneous with the formation of flaccid bullae, resulting from drug sensitivity or of unknown cause; the level of separation is subepidermal, unlike staphylococcal scalded skin syndrome in which there is subcorneal change. Synonym: Lyell's syndrome. (05 Mar 2000) |
| toxic equivalent | The amount of toxin or other poison per kilogram of body weight necessary to kill an animal. (05 Mar 2000) |
| toxic goiter | A goiter that forms an excessive secretion, causing signs and symptoms of hyperthyroidism. (05 Mar 2000) |
| toxic haemoglobinuria | Haemoglobinuria occurring after the ingestion of various poisons, in certain blood diseases, and in certain infections. (05 Mar 2000) |
| toxic hydrocephalus | Thrombotic hydrocephalus associated with some general infection or toxic state. (05 Mar 2000) |
| toxic megacolon | <gastroenterology, surgery> An acute nonobstructive dilation of the colon, seen in advanced ulcerative colitis and Crohn's disease. (12 Jan 1998) |
| toxic multinodular goiter | Condition in which the thyroid gland contains multiple lumps (nodules) that are overactive, produce excess thyroid hormones and thereby cause hyperthyroidism. This condition is also known as parry's disease or plummer's disease. (12 Dec 1998) |
| toxic nephrosis | Acute oliguric renal failure due to chemical poisons, septicaemia, or bacterial toxaemia; frequently associated with extensive necrosis of proximal convoluted tubules. (05 Mar 2000) |