dilator

or di·lat·er

[dahy-ley-ter, di-, dahy-ley-]

Origin of dilator

First recorded in 1595–1605; dilate + -or2
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Historical Examples of dilator


British Dictionary definitions for dilator

dilator

dilater dilatator (ˌdaɪləˈteɪtə, ˌdɪ-)

noun
  1. something that dilates an object, esp a surgical instrument for dilating a bodily cavity
  2. a muscle that expands an orifice or dilates an organ
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

dilator in Medicine

dilator

[dī-lātər, dīlā′-, dĭ-lā-]
n.
  1. An instrument or a substance for enlarging a cavity, canal, blood vessel, or opening.
  2. A muscle that dilates an orifice or a body part, such as a blood vessel or the pupil of the eye.dilatator
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.