Dictionary
per•cuss
Pronunciation: (pur-kus'), [key]—
v.t.
1. Med.to strike or tap for diagnostic or therapeutic purposes.
2. to strike (something) so as to shake or cause a shock to.
—
v.i.
Med.to strike the surface of a part of the body for diagnostic purposes.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.