Dilator

noun

Definitions

Noun
  1. 1
    Any nerve or muscle that causes part of the body to dilate.
  2. 2
    a surgical instrument that is used to dilate or distend an opening or an organ wordnet
  3. 3
    Any drug that causes such dilation.
  4. 4
    a drug that causes dilation wordnet
  5. 5
    An instrument used to dilate an orifice or cavity.
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  1. 6
    a muscle or nerve that dilates or widens a body part wordnet

Etymology

From dilate + -or.

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