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Noun dilator has 3 senses
  1. dilator - a muscle or nerve that dilates or widens a body part
    --1 is a kind of
    body part
    Derived form: verb dilate1
  2. dilator - a drug that causes dilation
    --2 is a kind of
    --2 has particulars: vasodilator, vasodilative
    Derived form: verb dilate1
  3. dilator, dilater - a surgical instrument that is used to dilate or distend an opening or an organ
    --3 is a kind of surgical instrument
    Derived form: verb dilate1
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