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dilator


Definition of dilator

noun

  • a thing that dilates something, in particular:
  • (also dilator muscle) Anatomy a muscle whose contraction dilates an organ or aperture, such as the pupil of the eye.
  • a surgical instrument for dilating a tube or cavity in the body.
  • a vasodilatory drug.

dilator in other Oxford dictionaries

Definition of dilator in the US English dictionary
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