| attrition | 1. The act of rubbing together; friction; the act of wearing by friction, or by rubbing substances together; abrasion. "Effected by attrition of the inward stomach." (Arbuthnot) 2. The state of being worn. 3. Grief for sin arising only from fear of punishment or feelings of shame. See Contrition. Origin: L. Attritio: cf. F. Attrition. Source: Websters Dictionary (01 Mar 1998) |
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| tooth attrition | The wearing away of a tooth as a result of tooth-to-tooth contact, as in mastication, occurring only on the occlusal, incisal, and proximal surfaces. It is chiefly associated with aging. It is differentiated from tooth abrasion (the pathologic wearing away of the tooth substance by friction, as brushing, bruxism, clenching, and other mechanical causes) and from tooth erosion (the loss of substance caused by chemical action without bacterial action). (12 Dec 1998) |
| accidental murmur | An evanescent cardiac murmur not due to valvular lesion. (05 Mar 2000) |
| anaemic murmur | A nonvalvular murmur heard on auscultation of the heart and large blood vessels in cases of profound anaemia associated mainly with turbulent blood flow due to decreased blood viscosity. (05 Mar 2000) |
| aneurysmal murmur | A systolic or systolic-diastolic murmur heard over some cardiac aneurysms. (05 Mar 2000) |
| aortic murmur | A murmur produced at the aortic orifice, either obstructive or regurgitant. (05 Mar 2000) |
| arterial murmur | A murmur heard on auscultating an artery. (05 Mar 2000) |
| atriosystolic murmur | A murmur heard at the end of ventricular diastole (during atrial systole if in sinus rhythm), usually due to obstruction at one of the atrioventricular orifices. Synonym: atriosystolic murmur, late diastolic murmur. (05 Mar 2000) |
| Austin Flint murmur | Synonym: Austin Flint phenomenon, Flint's murmur. (05 Mar 2000) |
| bellows murmur | A blowing murmur. (05 Mar 2000) |
| brain murmur | <neurology> Sounds produced by intracranial aneurysms or arterial venous aneurysms in congenital dysplastic angiomatosis. (05 Mar 2000) |
| Cabot-Locke murmur | <cardiology, clinical sign> An early diastolic murmur, like that of aortic insufficiency, heard best at the left lower sternal border in severe anaemia. (05 Mar 2000) |
| cardiac murmur | A murmur produced within the heart, at one of its valvular orifices or across ventricular septal defects. (05 Mar 2000) |
| cardiopulmonary murmur | <cardiology, clinical sign> An innocent extracardiac murmur, synchronous with the heart's beat but disappearing when the breath is held, believed due to movement of air in a segment of lung compressed by the contracting heart. Synonym: cardiorespiratory murmur. (05 Mar 2000) |
| cardiorespiratory murmur | <cardiology, clinical sign> An innocent extracardiac murmur, synchronous with the heart's beat but disappearing when the breath is held, believed due to movement of air in a segment of lung compressed by the contracting heart. Synonym: cardiorespiratory murmur. (05 Mar 2000) |