Also found in: Thesaurus, Medical, Encyclopedia, Wikipedia.


 (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 ?
As the cervix was not visualised, the cervix could not be held with any instrument but gentle pressure was applied with a Hegar dilator at the apex of the visible vagina.
10 Hanger female dilator All sizes Two set (Set of 10
Effect of the Airmax[R] Internal Nasal Dilator on Peak Nasal Inspiratory Flow, Aerobic Capacity and Rating of Perceived Exertion in Healthy Rugby Players.
Both the patients were used a F10 fascial dilator to dilate the working tract firstly and then used balloon dilatation catheter to dilate the channel.
The changes in upper airway diameter during respiration is thought to primarily result from increased activation (during inhalation) and decreased activation (during exhalation) of pharyngeal dilator muscles such as the geniohyoid, sternohyoid, genioglossus, and stylopharyngeus muscles.
After the placement of the guide catheter, tract was created by first dilating using a 6F Amplatz dilator set, then with one-shot method by using 25-30F dilator.
This method is done by one-step dilation with a 24 or 28F Amplatz dilator for the nephrostomy tract in all adult patients planned for percutaneous nephrolithotomy surgery.
This is a unique broncho dilator that patients need to take two puffs of once daily.
Beginning with a smaller size, patients typically insert a dilator several times a week (up to daily) for 5-10 minutes, changing size every 2-3 weeks.
The cannula was removed with the guidewire in situ and the dilator was advanced to create a track.
The devices in the product line include a soft-tip wire guide, a serial dilator set, the Kolenda Salivary Access Introducer Set and the NGage and NCircle salivary stone extractors.
Vaginal dilators often are sufficient to restore function, with dilator therapy considered successful if a woman is able to resume comfortable sexual intercourse or self-stimulation, as desired.