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Noun: dilator  di'ley-tu(r) or 'dI,ley-tu(r)
  1. A muscle or nerve that dilates or widens a body part
  2. A drug that causes dilation
  3. A surgical instrument that is used to dilate or distend an opening or an organ
    - dilater

Derived forms: dilators

Type of: body part, drug, surgical instrument

Encyclopedia: Dilator