friction sound
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friction sound — noun : an auscultatory sound caused by the rubbing together of two inflamed serous surfaces (as of the pleural membranes in pleurisy) … Useful english dictionary
friction murmur — friction rub a scratching sound, heard over the heart with the aid of the stethoscope, in patients who have pericarditis. It results from the two inflamed layers of the pericardium rubbing together during activity of the heart … The new mediacal dictionary
pericardial friction sound — see under rub … Medical dictionary
Friction drum — A friction drum is a musical instrument found in various forms in Africa, Asia, Europe and South America. In Europe it emerged in the 16th century and was associated with specific religious and ceremonious occasions.ConstructionA friction drum is … Wikipedia
sound — 1. The vibrations produced by a sounding body, transmitted by the air or other medium, and perceived by the internal ear. 2. An elongated cylindrical, usually curved, instrument of metal, used for exploring the bladder or other cavities of the… … Medical dictionary
Friction — For other uses, see Friction (disambiguation). Classical mechanics … Wikipedia
sound reception — Introduction response of an organism s aural mechanism, the ear, to a specific form of energy change, or sound waves. Sound waves can be transmitted through gases, liquids, or solids, but the hearing function of each species is particularly … Universalium
Sound post — In a string instrument, the sound post is a small dowel inside the instrument under the treble end of the bridge, spanning the space between the top and back plates and held in place by friction. It serves as a structural support for an archtop… … Wikipedia
friction drum — ▪ musical instrument musical instrument made of a membrane stretched across the mouth of a vessel and set in vibration by rubbing with wet or resined fingers a stick or string passed through the membrane or tied upright from underneath; in… … Universalium
Sound Dues — Map of the Danish coast line to the west, and the Swedish coast line to the east. From 1888. The Sound Dues (Danish: Øresundstolden, Swedish: Öresundstullen) were a toll on the use of the Sound which constituted up to two thirds of … Wikipedia
