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It is not only important, but, in a degree necessary, that the people of this country, should have an American Dictionary of the English language; for, although the body of the language is the same as in England, and it is desirable to perpetuate that sameness, yet some differences must exist. Language is the expression of ideas; and if the people of one country cannot preserve an identity of ideas, they cannot retain an identity of language. |
PERCUS'SION, n. [L.percussio.] The act of striking one body against another, with some violence; as the vibrations excited in the air by percussion.
The act of percussing, or striking one body
against another; forcible collision, esp. such as gives a sound or
report.
Sir I. Newton. Hence: The effect of violent collision;
vibratory shock; impression of sound on the ear.
The thunderlike percussion of thy sounds. Shak. 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.
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. | ||||||||