Friction

(frikf -s/nui) \_fricare, to rub]. The act of rubbing. F. -fremitus. See Fremitus. F. -sound, the sound observed in auscultation as a result of the rubbing together of adjacent parts, e.g., of the pleural folds, the pericardium, or the peritoneum, when the layers are dry or roughened. Friedreich’s Ataxia or Disease. See Diseases, Table of. F.’s Sign. See Signs and Symptoms, Table of. 285