instrument

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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

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.

instrument

[′in·strə·mənt]
(engineering)
A device for measuring and sometimes also recording and controlling the value of a quantity under observation.

instrument

A device using an internal mechanism to show visually or aurally the attitude, altitude, or operation of an aircraft or an aircraft part. It includes electronic devices for automatically controlling an aircraft in flight.

instrument

(programming)
To install devices or instructions into hardware or software to monitor the operation of a system or component.
References in periodicals archive ?
Hand instruments can be divided into sets identified for initial and maintenance therapy.
American Eagle is a global manufacturer of dental hand instruments and related supplies based in Missoula, Montana, USA.
It also provides information about clinical trials in progress, which includes trial phase, trial status, trial start and end dates, and, the number of trials for the key Hand Instruments pipeline products.
Rotary and hand instruments may still be needed for removal of tissue or material other than infected dentine collagen.
Tenders are invited for Laparoscopic Hand Instruments And Working Ports
Part 3: Means of oral surgery (dental treatment unit, complete dental chair, complete surgical micromotor with handheld instruments, surgical suction, cowhide, dental chair, surgical tray holder stand, hand instruments