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noun [countable] instrument pronunciation in British English /ˈɪnstrʊmənt/ 
Word Forms
  1. 1
    a tool or piece of equipment used in science, medicine, or technology

    scientific instruments such as microscopes

    1. a.
      a piece of equipment that measures something such as position, speed, or temperature

      Your compass and clock are the most essential instruments in sailing.

  2. 3
    an object that is used as a weapon

    an instrument of torture/death

    Synonyms and related words for this sense of instrument
  3. 4
    formal someone or something that can be used in order to make something happen

    The government has a number of policy instruments it can use for this purpose.

    instrument of:

    an important instrument of quality control

    Synonyms and related words for this sense of instrument
    1. a.
      a person who someone uses to help achieve a result
      instrument of:

      The missionaries believed they were instruments of God.


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