Center of percussion
Percussion Per*cus"sion, n. [L. percussio: cf. F. percussion. See {Percuss}.] 1. The act of percussing, or striking one body against another; forcible collision, esp. such as gives a sound or report. --Sir I. Newton. [1913 Webster]

2. Hence: The effect of violent collision; vibratory shock; impression of sound on the ear. [1913 Webster]

The thunderlike percussion of thy sounds. --Shak. [1913 Webster]

3. (Med.) The act of tapping or striking the surface of the body in order to learn the condition of the parts beneath by the sound emitted or the sensation imparted to the fingers. Percussion is said to be immediate if the blow is directly upon the body; if some interventing substance, as a pleximeter, is, used, it is called mediate. [1913 Webster]

{Center of percussion}. See under {Center}.

{Percussion bullet}, a bullet containing a substance which is exploded by percussion; an explosive bullet.

{Percussion cap}, a small copper cap or cup, containing fulminating powder, and used with a percussion lock to explode gunpowder.

{Percussion fuze}. See under {Fuze}.

{Percussion lock}, the lock of a gun that is fired by percussion upon fulminating powder.

{Percussion match}, a match which ignites by percussion.

{Percussion powder}, powder so composed as to ignite by slight percussion; fulminating powder.

{Percussion sieve}, {Percussion table}, a machine for sorting ores by agitation in running water. [1913 Webster]


The Collaborative International Dictionary of English. 2000.

Look at other dictionaries:

  • Center of percussion — Center Cen ter, n. [F. centre, fr. L. centrum, fr. round which a circle is described, fr. ? to prick, goad.] 1. A point equally distant from the extremities of a line, figure, or body, or from all parts of the circumference of a circle; the… …   The Collaborative International Dictionary of English

  • Center of percussion — The center of percussion is the point on an object where a perpendicular impact will produce translational and rotational forces which perfectly cancel each other out at some given pivot point, so that the pivot will not be moving momentarily… …   Wikipedia

  • center of percussion — the point in a body free to move about a fixed axis at which the body may be squarely struck without jarring the axis * * * Mech. the point on a rigid body, suspended so as to be able to move freely about a fixed axis, at which the body may be… …   Useful english dictionary

  • center of percussion — smūgio centras statusas T sritis fizika atitikmenys: angl. center of percussion vok. Stoßmittelpunkt, m; Stoßzentrum, n rus. центр удара, m pranc. centre de choc, m …   Fizikos terminų žodynas

  • center of percussion — Mech. the point on a rigid body, suspended so as to be able to move freely about a fixed axis, at which the body may be struck without changing the position of the axis. [1720 30] * * * …   Universalium

  • Center of a curve — Center Cen ter, n. [F. centre, fr. L. centrum, fr. round which a circle is described, fr. ? to prick, goad.] 1. A point equally distant from the extremities of a line, figure, or body, or from all parts of the circumference of a circle; the… …   The Collaborative International Dictionary of English

  • Center of a fleet — Center Cen ter, n. [F. centre, fr. L. centrum, fr. round which a circle is described, fr. ? to prick, goad.] 1. A point equally distant from the extremities of a line, figure, or body, or from all parts of the circumference of a circle; the… …   The Collaborative International Dictionary of English

  • Center of a surface — Center Cen ter, n. [F. centre, fr. L. centrum, fr. round which a circle is described, fr. ? to prick, goad.] 1. A point equally distant from the extremities of a line, figure, or body, or from all parts of the circumference of a circle; the… …   The Collaborative International Dictionary of English

  • Center of an army — Center Cen ter, n. [F. centre, fr. L. centrum, fr. round which a circle is described, fr. ? to prick, goad.] 1. A point equally distant from the extremities of a line, figure, or body, or from all parts of the circumference of a circle; the… …   The Collaborative International Dictionary of English

  • Center of curvature of a curve — Center Cen ter, n. [F. centre, fr. L. centrum, fr. round which a circle is described, fr. ? to prick, goad.] 1. A point equally distant from the extremities of a line, figure, or body, or from all parts of the circumference of a circle; the… …   The Collaborative International Dictionary of English

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