organ - definition and synonyms

noun [countable] 

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  1. 1
    biology a part of your body that does a specific job, such as your heart or brain. Your vital organs are the organs that you cannot live without

    The Health Service has a register of potential organ donors.

    an organ donor card

    1. a.
      a man’s penis. This word is usually used when you want to avoid using the wordpenis.
  2. 2

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    a large musical instrument with pipes of different length, played by pressing keys (=narrow bars) on it. Someone who plays an organ is an organist.