percussion (perkushon)

[F. percu ion = Pr. percutio, percu io = Sp. percusion = Pg. percu ão = It. percu i one, The times when the stroke or percu ion of an envious eye doth most hurt are when the party envied is beheld in glory or triumph. Bacon, Envy. 2. The state of being percu ed; the shock pro- duced by the collision of bodies.-3. The im- pre ion or effect of sound on the ear. With thy grim looks, and The thunder-like percu ion of thy sounds, Thou madest thine enemies shake. Shak ., Cor., i. 4. 59. 4. In med.: (a) In diagnosis, the method of striking or tapping the surface of the body for the purpose of determining the condition of the organs in the region struck. It is employed chiefly in the diagnosis of diseases of the lungs, heart, and abdominal organs. ( b ) In therapeuties, tapping or striking in various ways with the hand or with an instrument as a therapeutic measure and a part of general ma age. 5. In music, the production of a tone by a stroke or a blow, as upon any keyboard-instrument. Specifically-( a ) In musical composition, the occurrence of a 4389 di onant tone; the actual sounding of a discord: distinguished from preparation on the one hand and resolution on the other. (b) In the reed-organ, a contrivance for striking a reed at the instant it is to be sounded, so as to set it in vibration promptly and forcibly. The stop-knob by which this contrivance is controlled is often called the percu ion - stop. perdition Pa ed, done, or effected through or by means of the skin: as, percutaneous ligation. Percutaneous stimulation by the same method on the motor points of various muscles in the human arm. Amer. Jour. Psychol., I. 184. 6. In palmistry, the outer side of the hand; the side of the hand opposite the thumb.- Center of percutaneous manner; through or by means percu ional (per-kush'on-al), a. [ IMG:content-2670.png:[blocks in formation] percutaneously (per-ku-tā nē-us-li), adv. In a of the skin. per cut eur (F. pron. per-kü-tėr'), n. [F.,