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 (dī-lā′tər, dī′lā′-, dĭ-lā′-)
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.


(daɪˈleɪtə; dɪ-) or




(ˌdaɪləˈteɪtə; ˌdɪ-)
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


or di•lat•er

(daɪˈleɪ tər, dɪ-, ˈdaɪ leɪ-)

1. any muscle that dilates a part of the body.
2. a surgical instrument for performing a dilatation.
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.


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


n dilatador m
English-Spanish/Spanish-English Medical Dictionary Copyright © 2006 by The McGraw-Hill Companies, Inc. All rights reserved.
References in periodicals archive ?
A rigiflex 30-mm balloon dilator (Boston Scientific, Natick, MA, USA) was used at the first endoscopic PBD procedure.
Others have reported higher risk of perforation with 35 mm balloon than a 30 mm balloon.24 Minor problems of gastro esophageal reflux were seen in 52 patients (9.7%) in our study, managed with antireflux measures, whereas others reported up to 15-35%.25 A meta-analysis of 24 studies of 1144 patients reported in 2009 by the same authors, with a mean follow-up of almost three years, using Rigiflex pneumatic balloon dilator showed, good to excellent symptom relief in 74 to 90% of patients using 30, 35 and 40 mm balloons, respectively.25
A high-pressure balloon dilator (Nephromax[TM] Microvasive, Boston Scientific Corporation, Natick, MA, U.S.) or telescopic dilatators were used for tract dilatation.
After visualizing the biliary tract by contrast medium injection, the puncture route was dilated with a bougie dilation catheter (ES dilator; Zeon Medical, Tokyo, Japan) and a balloon dilator (Max Force; 4 mm in diameter, Boston Scientific) over a guidewire (0.035-inch Jagwire; Boston Scientific).
During this procedure it was noted that both of the ureteral orifices were extremely large and easily refluxed, so much so that a 36 French balloon dilator was required for ureteral obstruction during instillation.
PCNL tract creations are usually done by one of three dilatation technique like Alken Metal telescopic dilators, Amplatz Incremental dilator set or Balloon dilator. (1)
*Devices: (1) Balloon dilator: Boston Scientific Company, Boston, MA, USA; (2) Needle knife: MTW Company, Germany; (3) High frequency electronic equipment: ERBE Company Tubingen, Germany; (4) Cryotherapy equipment: ERBE Company, Germany; (5) Local instillation catheter: Self-made, 125-cm length and 2-mm diameter.
Strictures were dilated with a 4 x 10-mm salivary balloon dilator inflated with 1.2 ml of sterile water.
Conclusion: The balloon dilator and amplatz dilator have similar results with regard to efficacy, speed, and safety, However, the cost of the balloon dilator is higher than that of the arnplatz dilator.
The aim of our pilot study was to document our experiences comparing a single-step balloon dilator (Pathway) with ASD.