Webster dictionary was developed by Noah Webster in the beginning of 19th century. On this website, you can find definition for instrument from the 1913 edition of Webster's Revised Unabridged Dictionary. Define instrument using one of the most comprehensive free online dictionaries on the web.

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Part of Speech: noun
Results: 5
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.
2. A contrivance or implement, by which musical sounds are produced; as, a musical instrument.
4. One who, or that which, is made a means, or is caused to serve a purpose; a medium, means, or agent.
Part of Speech: verb transitive
1. To perform upon an instrument; to prepare for an instrument; as, a sonata instrumented for orchestra.
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