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Related to dilation: Cervical dilation


 (dī-lā′shən, dĭ-)
a. The act of expanding or enlarging or the state of being expanded or enlarged: dilation of the cervix during labor.
b. The condition of being abnormally expanded or enlarged, as of an organ, orifice, or tubular structure in the body.
2. A lengthy spoken or written discussion on a topic: "an Edith Whartonesque dilation on a social class steeped in hypocrisy" (Caroline Seebohm).


(daɪˈleɪ ʃən, dɪ-)

1. the act of dilating or the state of being dilated.
3. the increase in volume per unit volume of a homogeneous substance.


 of pupils: schoolchildren collectivelyLipton, 1970.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.dilation - a lengthy discussion (spoken or written) on a particular topic
discussion, discourse, treatment - an extended communication (often interactive) dealing with some particular topic; "the book contains an excellent discussion of modal logic"; "his treatment of the race question is badly biased"
2.dilation - the act of expanding an aperture; "the dilation of the pupil of the eye"
enlargement, expansion - the act of increasing (something) in size or volume or quantity or scope
vasodilation - dilation of blood vessels (especially the arteries)
mydriasis - reflex pupillary dilation as a muscle pulls the iris outward; occurs in response to a decrease in light or certain drugs


noun enlargement, increase, spread, expansion, extension, broadening, dilatation, distension the constriction and dilation of blood vessels


[daɪˈleɪʃən] Ndilatación f
dilation and curettage (Med) → raspado m, legrado m


nAusdehnung f, → Erweiterung f; (of pupils)Erweiterung f


[daɪˈleɪʃn] ndilatazione f

dilation, dilatation

n dilatación f; — and curettage (D&C) dilatación y curetaje, dilatación y legrado
References in classic literature ?
The dilation and contraction of the gas in the balloon is my means of locomotion, which calls for neither cumbersome wings, nor any other mechanical motor.
Perched on the rim of Michael's pannikin, this inconsiderable adventurer from out of the dark into the sun of life, a mere spark and mote between the darks, by a ruffing of his salmon-pink crest, a swift and enormous dilation of his bead-black pupils, and a raucous imperative cry, as of all the gods, in his throat, could make Michael give back and permit the fastidious selection of the choicest tidbits of his dish.
Often, of an evening, when he sat at the window, his desk and papers before him, he would cease reading or writing, rest his chin on his hand, and deliver himself up to I know not what course of thought; but that it was perturbed and exciting might be seen in the frequent flash and changeful dilation of his eye.
Not a muscle quivered; nor was there the slightest dilation of a nostril, nor the slightest increase of light in the eyes.
Dalloway hid a tiny yawn, a mere dilation of the nostrils.
His beard flowed imposingly downwards, out of sight, be tween the two brown hands gripping the edge of the table, and his persistent glance made sombre by the wide dilations of the pupils, fascinated.
In the PVS group and the PAS group, there was no statistical difference among age at dilation, postoperative interval, balloon/stenosis ratio, or pressure gradient predilation between the successful and the unsuccessful subgroups.
The article concludes that Eyenovia's micro-dose delivery of topical phenylephrine achieves comparable dilation results with a dose one-quarter the volume of a conventional pipette eye dropper.
Objective: To evaluate the results of single session of endoscopic balloon dilation with 30mm pneumatic balloon for achalasia, over a prolonged ([greater than or equal to]12 months) observation period.
The researchers found an association between frequent hot flashes and a lower degree of dilation in blood vessels, which indicates a higher risk of developing heart disease.
Balloon sinus dilation is a simple office procedure that gently expands the natural sinus openings to fix underlying drainage problems.
Background/Aims: Endoscopic balloon dilation (EBD) can serve as an alternative to surgery for intestinal stenosis associated with Crohn's disease (CD).