Instrument

Instrument may refer to:

Science and technology

Flight instruments, the devices used to measure the speed, altitude, and pertinent flight angles of various kinds of aircraft
Laboratory equipment, the measuring tools used in a scientific laboratory, often electronic in nature
Mathematical instrument, devices used in geometric construction or measurements in astronomy, surveying and navigation
Measuring instrument, a device used to measure or compare physical properties
Medical instrument, a device used to diagnose or treat diseases
Optical instrument, relies on the properties of light
Quantum instrument, a mathematical object in quantum theory combining the concepts of measurement and quantum operation
Scientific instrument, a device used to collect scientific data
Surgical instrument
Vehicle instrument, a device measuring parameters of a vehicle, such as its speed or position
Weather instrument, a device used to record aspects of the weather

Instrument (film), a documentary of the band Fugazi, directed by Jem Cohen
Instruments (application), a performance visualizer
Instrumental variable, a method used in statistics
Financial instrument, a formal documentation of a financial transaction
Legal instrument, a formal documentation of a status or transaction
Negotiable instrument, a type of contract
Statutory instrument, a form of legislation
Instrumental case, in linguistics, a grammatical case expressing the instrument by which an action is performed