| AP | AP is a versatile abbreviation. It serves in cardiology to abbreviate angina pectoris (AP) and arterial pressure (AP). In endocrinology, it stands for the anterior pituitary (AP). And in anatomy, AP means anteroposterior, i.e., from front-to-back. (12 Dec 1998) |
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| AP projection | The alternative frontal radiographic projection, used mainly in bedside or portable radiography. Synonym: anteroposterior projection. (05 Mar 2000) |
| ap, X-ray | An X-ray picture in which the beams pass from front-to-back (anteroposterior). As opposed to a PA (posteroanterior) film in which the rays pass through the body from back-to-front. (12 Dec 1998) |
| AP24 apoptotic protease | <enzyme> Activated during apoptosis; activates internucleosomal DNA fragmentation Registry number: EC 3.4.21.- Synonym: 24-kD apoptotic protease, apoptotic protease ap24 (26 Jun 1999) |
| APA | <abbreviation> Antipernicious anaemia factor. (05 Mar 2000) |
| apache | An acronym for acute physiology and chronic health evaluation, a scoring system using routinely collected data and providing an accurate, objective description for a broad range of intensive care unit admissions, measuring severity of illness in critically ill patients. This classification system is composed of two parts: a physiology score representing the degree of acute illness and a preadmission health evaluation indicating health status before acute illness. Development of apache began in 1978 under a 3-year research grant from the u.s. Health care financing administration. Revision and streamlining resulted in apache II. Its 12 routinely measured physiological variables were later amplified to become apache III. (12 Dec 1998) |
| APACHE score | Acute physiology and chronic health evaluation. The most widely used method of assessing the severity of illness in acutely ill patients in intensive care units. (05 Mar 2000) |
| apaches | <ethnology> A group of nomadic North American Indians including several tribes native of Arizona, new Mexico, etc. Source: Websters Dictionary (01 Mar 1998) |
| apagoge | <logic> An indirect argument which proves a thing by showing the impossibility or absurdity of the contrary. Origin: Gr. A leading away, fr. To lead away; from + to lead. Source: Websters Dictionary (01 Mar 1998) |
| apagogical | Proving indirectly, by showing the absurdity, or impossibility of the contrary. Source: Websters Dictionary (01 Mar 1998) |
| ApaLI methylase | <enzyme> Mw 46.5 kD; has 429 amino acid residues; shows significant similarity to cytosine-5 methylases; genbank d78276 Registry number: EC 2.1.1.- Synonym: m.apali (26 Jun 1999) |
| apallesthesia | Synonym: pallanesthesia. Origin: G. A-priv. + pallo, to tremble, quiver, + aisthesis, feeling (05 Mar 2000) |
| apallic | Synonym: apallic state. Origin: G. A-priv. + L. Pallium, brain mantle (cerebral cortex) (05 Mar 2000) |
| apallic state | Diffuse, bilateral cerebral cortical degeneration caused by head injury, anoxia, or encephalitis, a state of persistent unresponsiveness, such as akinetic mutism, caused by brain damage. See: vegetative. Synonym: apallic syndrome, apallic. (05 Mar 2000) |
| apallic syndrome | Diffuse, bilateral cerebral cortical degeneration caused by head injury, anoxia, or encephalitis, a state of persistent unresponsiveness, such as akinetic mutism, caused by brain damage. See: vegetative. Synonym: apallic syndrome, apallic. (05 Mar 2000) |