|Origin:||instrumentum, from instruere; INSTRUCT|
in‧stru‧ment W2 [countable]
a small tool used in work such as science or medicine:
an object used for producing music, such as a piano or violin [= musical instrument; ↪ instrumental, instrumentalist]:
a piece of equipment for measuring and showing distance, speed, temperature etc:
a failure of the flight instruments
sensitive earthquake-detecting instruments
something or someone that is used to get a particular result
Interest rates are an important instrument of economic policy.
instrument for (doing) something
Good management should be an instrument for innovation.
something that is used to hit or hurt someone:
Death was due to a blow on the head with a blunt instrument.
instrument of torture (=an object used to make people suffer pain until they give information)
someone or something that is used by a power beyond our control