In"stru*ment (?), n. [F. instrument, L. instrumentum. See Instruct.]
1.
That by means of which any work is performed, or result is effected; a tool; a utensil; an implement; as, the instruments of a mechanic; astronomical instruments.
All the lofty instruments of war.
Shak.
2.
A contrivance or implement, by which musical sounds are produced; as, a musical instrument.
Praise him with stringed instruments and organs.
Ps. cl. 4.
But signs when songs and instruments he hears.
Dryden.
3. Law
A writing, as the means of giving formal expression to some act; a writing expressive of some act, contract, process, as a deed, contract, writ, etc.
Burrill.
4.
One who, or that which, is made a means, or is caused to serve a purpose; a medium, means, or agent.
Or useful serving man and instrument,
To any sovereign state.
Shak.
The bold are but the instruments of the wise.
Dryden.
Syn. -- Tool; implement; utensil; machine; apparatus; channel; agent.
© Webster 1913.
In"stru*ment (?), v. t.
To perform upon an instrument; to prepare for an instrument; as, a sonata instrumented for orchestra.
© Webster 1913.