| AC | abdominal circumference; abdominal compression; absorption coefficient; abuse case; acetate; acetylc... |
|---|---|
| HACE | High Altitude Cerebral Edema |
| HAPE | High Altitude Pulmonary Edema |
| HARH | High Altitude Retinal Hemorrhage |
| Alt, alt | aluminum tartrate; alternate; altitude |
| HACE | High Altitude Cerebral Edema |
|---|---|
| HAPE | High Altitude Pulmonary Edema |
| HA | High altitude |
| ALT | altitude |
| AC | Anterior Chamber |
| altitude chamber | A decompression chamber for simulating a high altitude environment, particularly its low barometric pressure. Synonym: high altitude chamber. (05 Mar 2000) |
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| high altitude chamber | A decompression chamber for simulating a high altitude environment, particularly its low barometric pressure. Synonym: high altitude chamber. (05 Mar 2000) |
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| altitude | 1. Space extended upward; height; the perpendicular elevation of an object above its foundation, above the ground, or above a given level, or of one object above another; as, the altitude of a mountain, or of a bird above the top of a tree. 2. <astronomy> The elevation of a point, or star, or other celestial object, above the horizon, measured by the arc of a vertical circle intercepted between such point and the horizon. It is either true or apparent; true when measured from the rational or real horizon, apparent when from the sensible or apparent horizon. 3. <geometry> The perpendicular distance from the base of a figure to the summit, or to the side parallel to the base; as, the altitude of a triangle, pyramid, parallelogram, frustum, etc. 4. Height of degree; highest point or degree. "He is [proud] even to the altitude of his virtue." (Shak) 5. Height of rank or excellence; superiority. 6. Elevation of spirits; heroics; haughty airs. "The man of law began to get into his altitude." (Sir W. Scott) Meridian altitude, an arc of the meridian intercepted between the south point on the horizon and any point on the meridian. See Meridian. Origin: L. Altitudo, fr. Altus high. Cf. Altar, Haughty, Enhance. Source: Websters Dictionary (01 Mar 1998) |
| altitude disease | A condition that results from prolonged exposure to high altitude. Symptoms include a continuous dry cough, shortness of breath, poor exercise tolerance, dizziness, headache, sleep difficulty, anorexia, confusion, fatigue and a rapid pulse. Treatment includes the immediate movement to a lower altitude. Prophylaxis has been accomplished successfully with the use of acetazolamide (Diamox). (27 Sep 1997) |
| altitude erythraemia | Loss of high altitude tolerance after prolonged exposure (e.g., by residence), characterised by extreme polycythemia, exaggerated hypoxaemia, and reduced mental and physical capacity; relieved by descent. Synonym: altitude erythraemia, chronic soroche, Monge's disease. (05 Mar 2000) |
| altitude sickness | A condition that results from prolonged exposure to high altitude. Symptoms include a continuous dry cough, shortness of breath, poor exercise tolerance, dizziness, headache, sleep difficulty, anorexia, confusion, fatigue and a rapid pulse. Treatment includes the immediate movement to a lower altitude. Prophylaxis has been accomplished successfully with the use of acetazolamide (Diamox). (27 Sep 1997) |
| high altitude cerebral oedema | <physiology> A serious condition that results from the sudden increase in pressure within the brain due to swelling. This is thought to occur secondary to exposure to high altitudes, generally in excess of 12,000 feet. (12 Jan 1998) |
| high altitude pulmonary oedema | <physiology> The abnormal deposition of fluid into the lungs that occurs with exposure to lower barometric pressure and low oxygen. (12 Jan 1998) |
| high altitude sickness | A condition that results from the exposure to lower barometric pressure (lower oxygen concentration). Synonym: acute mountain sickness. (27 Sep 1997) |
| abnormal heart chamber dimensions | <radiology> Left ventricular volume overload, left ventricular hypertrophy, right ventricular volume overload, right ventricular hypertrophy, fixed subvalvular aortic stenosis, hypoplastic left/right ventricle; common ventricle, congestive cardiomyopathy (12 Dec 1998) |
| air chamber | 1. A chamber or cavity filled with air, in an animal or plant. 2. A cavity containing air to act as a spring for equalizing the flow of a liquid in a pump or other hydraulic machine. Source: Websters Dictionary (01 Mar 1998) |
| anechoic chamber | A room designed to absorb all sound so as to eliminate all echoes; used for isolation and sound research on human subjects. (05 Mar 2000) |
| anterior chamber | The space in the eye, filled with aqueous humor, bounded anteriorly by the cornea and a small portion of the sclera and posteriorly by a small portion of the ciliary body, the iris, and that part of the crystalline lens which presents through the pupil. (12 Dec 1998) |
| anterior chamber cleavage syndrome | <syndrome> A congenital disorder originating from faulty separation of embryonic structures; it results in bilateral central corneal opacities, with an anterior ring attachment of the iridic pupillary border and anterior polar cataracts; associated with short-limbed dwarfism; autosomal dominant inheritance. See: iridocorneal endothelial syndrome. Synonym: Peters' anomaly. (05 Mar 2000) |
| anterior chamber of eye | The space between the cornea anteriorly and the iris/pupil posteriorly, filled with a watery fluid (aqueous humor) and communicating through the pupil with the posterior chamber. Synonym: camera anterior bulbi, camera oculi anterior, camera oculi major. (05 Mar 2000) |
| anterior chamber trabecula | Tissue at the angle of the anterior chamber through which aqueous humor exits from the eye. (05 Mar 2000) |
| altitude chamber |
a vacuum chamber used to simulate the effects of high altitude and low atmospheric pressure.
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