| PI | first meiotic prophase; isoelectric point; pacing impulse; package insert; pancreatic insufficiency;... |
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| CEA | Carcino-Embryonic Antigen [HP 1825-6] ; Oncofetal Antigens ; Glycopro... |
| BEK | bovine embryonic kidney [cells] |
| BEL | blood ethanol level; bovine embryonic lung |
| BESM | bovine embryonic skeletal muscle |
primary immune response (일차 면역 반응
| primary brain tumour | <neurology, oncology> May be subdivided into primary brain tumours and the more common, secondary brain tumours. Primary brain tumours (for example astrocytoma, craniopharyngioma, glioma, ependymoma, neuroglioma, oligodendroglioma, glioblastoma multiforme, meningioma, medulloblastoma) arise from the uncontrolled proliferation of cells within the brain. Secondary brain tumours occur from the spread of cancer into the brain from a distant cancerous organ (metastasis). Common symptoms of a brain tumour include headache, nausea, vomiting, seizures, change in mentation, neurologic symptoms and loss of memory. (06 Mar 1998) |
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| primary brain vesicle | Each of the three divisions of the early embryonic brain (prosencephalon, mesencephalon, and rhombencephalon). Synonym: encephalic vesicle, primary brain vesicle. (05 Mar 2000) |
| primary bronchus | The main bronchus arising at the tracheal bifurcation and extending into the developing lung of the embryo. (05 Mar 2000) |
| primary butyl alcohol | Propylcarbinol, CH3CH2CH2CH2OH, the butyl alcohol of fermentation; isobutyl alcohol, isopropylcarbinol, 2-methyl-1-propanol, (CH3)2CHCH2OH; narcotic in high concentrations, secondary butyl alcohol, ethylmethylcarbinol, 2-butanol, CH3CH2CH(CH3)OH; and (05 Mar 2000) |
| primary carcinoma | <tumour> Carcinoma at the site of origin, with local invasion in that organ. (05 Mar 2000) |
| primary cardiomyopathy | Cardiomyopathy of unknown or obscure cause. A disease that affects mainly the heart muscle, sparing other cardiac structures and usually resulting in fibrosis, hypertrophy, or both. Synonym: idiopathic cardiomyopathy. (05 Mar 2000) |
| primary care | The medical home for a patient, ideally providing continuity and integration of health care. All family physicians and most paediatricians and internists are in primary care. The aims of primary care are to provide the patient with a broad spectrum of care, both preventive and curative, over a period of time and to coordinate all of the care the patient receives. (12 Dec 1998) |
| primary caries | Initial lesions produced by direct extension from an external surface. (05 Mar 2000) |
| primary cementum | Cementum that has no cementocytes; may cover the entire root of the tooth, but often is missing on the apical third of the root. (05 Mar 2000) |
| primary centre of ossification | This is the first site where bone begins to form in the shaft of a long bone or in the body of an irregular bone. Synonym: punctum ossificationis primarium, primary point of ossification. (05 Mar 2000) |
| primary choana | Primitive choana, initial opening of the nasal pits and olfactory sac of the embryo into the rostral part of the primordial oronasal cavity, before the formation of the secondary palate. (05 Mar 2000) |
| primary coccidioidomycosis | A disease common in the San Joaquin Valley of California and certain additional areas in the southwestern U.S. As well as the Chaco region of Argentina, caused by inhalation of the arthroconidia of Coccidioides immitis; acute onset of symptoms resemble pneumonia or pulmonary tuberculosis, productive of sputum usually containing spores of the fungus, and accompanied by aches, malaise, severe headache, and occasionally an early erythematous or papular eruption; erythema multiforme or erythema nodosum may appear; the coccidioidin test is positive. Synonym: desert fever, San Joaquin fever, San Joaquin Valley disease, San Joaquin Valley fever, valley fever. (05 Mar 2000) |
| primary colour | The three colour's of the retinal cone pigments (red, green, blue) that may be combined to match any hue. Synonym: simple colour. (05 Mar 2000) |
| primary complex | The typical lesions of primary pulmonary tuberculosis, consisting of a small peripheral focus of infection, with hilar or paratracheal lymph node involvement. (05 Mar 2000) |
| primary constriction | The narrowing between the two arms of the chromosome represented by the centromere. (05 Mar 2000) |