Instrument (redirected from plastic instrument)

instrument

1. Music any of various contrivances or mechanisms that can be played to produce musical tones or sounds

2. a measuring device, such as a pressure gauge or ammeter

3. 

a. a device or system for use in navigation or control, esp of aircraft

b. (as modifier): instrument landing

4. a formal legal document

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instrument [′in·strə·mənt]

(engineering)

A device for measuring and sometimes also recording and controlling the value of a quantity under observation.

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(programming)

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

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Instrument 

a tool of human labor or an actuating mechanism of a machine, which “takes hold of an object of labor and alters it in an expedient fashion” (K. Marx, in K. Marx and F. Engels, Soch., 2nd ed., vol. 23, p. 384).

Instruments are divided into the following categories: (1) cutting (cutter, drill, broach, milling cutter), (2) pressing (stamp, knurl), (3) polishing (polishing wheel, whetstone), (4) percussion (hammer, chisel, punch), and (5) fastening-clamping (machine tool chuck, cutter tool post, vise, tongs). Various devices, apparatus, and equipment used in science and technology for measurements and other procedures and in medicine and veterinary science for surgical operations, therapeutic procedures, and research are also called instruments.