dilator

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di·la·tor

 (dī-lā′tər, dī′lā′-, dĭ-lā′-)
n.
1. A muscle that dilates a body part, such as a blood vessel or the pupil of the eye.
2. An instrument that dilates a body part, such as a cavity, canal, or orifice.
American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.

dilator

(daɪˈleɪtə; dɪ-) or

dilater

;

dilatator

(ˌdaɪləˈteɪtə; ˌdɪ-)
n
1. (Surgery) something that dilates an object, esp a surgical instrument for dilating a bodily cavity
2. (Physiology) a muscle that expands an orifice or dilates an organ
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014

di•la•tor

or di•lat•er

(daɪˈleɪ tər, dɪ-, ˈdaɪ leɪ-)

n.
1. any muscle that dilates a part of the body.
2. a surgical instrument for performing a dilatation.
[1595–1605]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.dilator - a muscle or nerve that dilates or widens a body part
body part - any part of an organism such as an organ or extremity
2.dilator - a drug that causes dilation
drug - a substance that is used as a medicine or narcotic
vasodilative, vasodilator - a drug that causes dilation of blood vessels
3.dilator - a surgical instrument that is used to dilate or distend an opening or an organ
surgical instrument - a medical instrument used in surgery
Based on WordNet 3.0, Farlex clipart collection. © 2003-2012 Princeton University, Farlex Inc.
Translations

di·la·tor

n. dilatador.
1. músculo que dilata un órgano al contraerse;
2. instrumento quirúrgico para expandir o dilatar un orificio o paredes;
Hegar's ______ de Hegar, instrumento usado para dilatar el canal uterino.
English-Spanish Medical Dictionary © Farlex 2012

dilator

n dilatador m
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
The aim of this prospective study was to assess the efficacies of laminaria, vaginal misoprostol, and mechanical dilator applications before surgical intervention with regard to the optimal cervical dilation and severity of pain in first-trimester pregnant women with missed abortion.
Consider a mechanical dilator. When cervical dilation is difficult, a series of small Hagar or lacrimal duct dilators may be helpful (FIGURE, page 43).
(1) It is usually accomplished using tapered mechanical dilators, which may cause cervical injury or uterine perforation.