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1. Oxford American Dictionary

   dilator

   • IPA[ˈdīˌlādər]

   美式

   • n.
     a thing that dilates something.；a muscle whose contraction dilates an organ or aperture, such as the pupil of the eye.

   • noun: dilator, plural noun: dilators

2. • 釋義

   n.

   名詞

   • 1. a thing that dilates something.
   • ▪ 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.
3. • 更多解釋

   dilator

   • IPA[dʌɪˈleɪtə]

   英式

   • n.
     a thing that dilates something.

   Oxford Dictionary