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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.


(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


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.
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


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.


n dilatador m
References in periodicals archive ?
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.
Contract notice: sale and purchase agreement to acquire vascular stents and balloon dilator.
A high-pressure balloon dilator (Nephromax[TM] Microvasive, Boston Scientific Corporation, Natick, MA, U.
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.
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.
Strictures were dilated with a 4 x 10-mm salivary balloon dilator inflated with 1.
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.
The failures resulted from organ damage (2) and inability to insert over-the-wire balloon dilator into gastric puncture (3).
9 November 2011 - Boston Scientific Corporation (NYSE:BSX) has received CE Mark for the use of its Wireguided Balloon Dilator for endoscopic dilation of the Sphincter of Oddi following sphincterotomy.
The dilatations were carried out using either a Rigiflex (Microvasive) achalasia balloon dilator (diameter 35 mm) or a Witzel endoscopic pneumatic dilator.