| IC | icteric, icterus; immune complex; immunoconjugate; immunocytochemistry; immunocytotoxicity; impedanc... |
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| ID | identification; iditol dehydrogenase; immunodeficiency; immunodiffusion; immunoglobulin deficiency; ... |
| IHCA | individual health care account; isocapnic hyperventilation with cold air |
| IMP | idiopathic myeloid proliferation; impression; incomplete male pseudohermaphroditism; individual Medi... |
| IMR | individual medical record; infant mortality rate; infant mortality risk; Institute for Medical Resea... |
| normal bite | That arrangement of teeth and their supporting structure which is usually found in health and which approaches an ideal or standard arrangement. Synonym: normal bite. Synonym: neutral occlusion. (05 Mar 2000) |
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| normal butyric acid | (also written as n-butyric acid), butanoic acid, CH3CH2CH2COOH, which occurs in combination with glycerol in cow's butter; and isobutyric acid, 2-methylpropanoic acid, (CH3)2CHCOOH, one of the intermediates in valine catabolism, found in combination with glycerol in croton oil and elsewhere. (05 Mar 2000) |
| normal cholesteraemic xanthomatosis | histiocytosis |
| normal distribution | Continuous frequency distribution of infinite range. Its properties are as follows: 1) continuous, symmetrical distribution with both tails extending to infinity; 2) arithmetic mean, mode, and median identical; and 3) shape completely determined by the mean and standard deviation. (12 Dec 1998) |
| normal electrical axis | A mean electrical axis of the heart situated between -30 |
| normal hearing | The ability to perceive sound normally. Synonym: normal hearing. Origin: G. Akousis, hearing (05 Mar 2000) |
| normal horse serum | The sterile and filtered serum of a healthy, unvaccinated horse. (05 Mar 2000) |
| normal human plasma | Sterile plasma obtained by pooling approximately equal amounts of the liquid portion of citrated whole blood from eight or more adult humans who have been certified as free from any disease which is tranmissible by transfusion, and treating it with ultraviolet irradiation to destroy possible bacterial and viral contaminants. (05 Mar 2000) |
| normal human serum | Sterile serum obtained by pooling approximately equal amounts of the liquid portion of coagulated whole blood from eight or more persons who are free from any disease transmissible by transfusion. (05 Mar 2000) |
| normal human serum albumin | A sterile preparation of serum albumin obtained by fractionating blood plasma proteins from healthy persons; used as a transfusion material and to treat oedema due to hypoproteinaemia. Synonym: dried human albumin. (05 Mar 2000) |
| normal opsonin | That normally present in the blood, i.e., without stimulation by a known, specific antigen such as certain complement components; it is relatively thermolabile and reacts with various organisms. Synonym: common opsonin, thermolabile opsonin. Specific opsonin, antibodies formed in response to stimulation by a specific antigen, either as a result of an attack of a disease, or injections with a suitably prepared suspension of the specific microorganism. Synonym: immune opsonin, thermostable opsonin. (05 Mar 2000) |
| normal pressure hydrocephalus | <neurology> A brain disorder caused by blockage of the flow of cerebrospinal fluid (CSF), with enlargement of the ventricles of the brain (keep the pressure normal) and compression of brain tissue. Brain atrophy is the result. In this condition the CSF is produced normally but not reabsorbed. Symptom onset is gradual. A key feature is dementia. Treatment is surgical (VP shunt). (13 Nov 1997) |
| normal range | Normal results can fall outside the normal range. By convention, the normal range is set to cover ninety-five percent (95%) of values from a normal population. Five percent (5%) of normal results therefore fall outside the normal range. (12 Dec 1998) |
| normal serum | A nonimmune serum, usually with reference to a serum obtained prior to immunization. (05 Mar 2000) |
| normal tartrate | Tartrate that contains no uncombined acid groups. (05 Mar 2000) |