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a mechanical tool or implement, especially one used for delicate or precision work:
surgical instruments.
a contrivance or apparatus for producing musical sounds:
a stringed instrument.
a means by which something is effected or done; agency:
an instrument of government.
a device for measuring the present value of a quantity under observation.
a mechanical or electronic measuring device, especially one used in navigation:
landing a plane by instruments.
a formal legal document, as a draft or bond:
negotiable instruments.
a person used by another merely as a means to some private end; tool or dupe.
verb (used with object)
to equip with instruments, as a machine or manufacturing process:
to instrument a space vehicle.
to arrange a composition for musical instruments; orchestrate.
noun (ˈɪnstrəmənt)
a mechanical implement or tool, esp one used for precision work: surgical instrument
(music) any of various contrivances or mechanisms that can be played to produce musical tones or sounds
an important factor or agency in something: her evidence was an instrument in his arrest
(informal) a person used by another to gain an end; dupe; tool
a measuring device, such as a pressure gauge or ammeter

a device or system for use in navigation or control, esp of aircraft
(as modifier): instrument landing

a formal legal document
verb (transitive) (ˈɪnstrəˌmɛnt)
another word for orchestrate (sense 1)
to equip with instruments

instrument in·stru·ment (ĭn’strə-mənt)
A tool or implement, as for surgery.

To install devices or instructions into hardware or software to monitor the operation of a system or component.


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