dilation


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Related to dilation: Cervical dilation

dilation

 [di-la´shun]
1. the act of dilating or stretching.
3. an increase in the diameter of a circular structure, such as the pupil.
dilation and curettage D and C; expanding of the ostium uteri to permit scraping of the walls of the uterus. See also abortion.

di·la·tion

(dī-lā'shŭn),
1. Physiologic or artificial enlargement of a hollow structure or opening.
2. The act of stretching or enlarging an opening or the lumen of a hollow structure.
Synonym(s): dilatation
[L. dilato, pp. dilatatus, to spread out, dilate]

dilation

/di·la·tion/ (di-la´shun)
1. the act of dilating or stretching.

dilation

(dī-lā′shən, dĭ-)
n.
1.
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).

dilation

[dīlā′shən]
Etymology: L, dilatare, to widen
1 the condition of being dilated or stretched.
2 the process of causing a physiological increase in the diameter of a body opening, blood vessel, or tube. Examples include the widening of the pupil of the eye by the use of cycloplegic eyedrops for examination of the retina and opening of the uterine cervix to facilitate curettage by the use of a dilator. Also called dilatation.
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Dilation of the pupils may indicate fear, shock, or cardiac arrest

dilation

Ophthalmology A process by which the pupil is temporarily enlarged with mydriatics to improve visualization of the fundus

di·la·tion

(dī-lā'shŭn)
1. Physiologic or artificial enlargement of a hollow structure or opening.
2. The act of stretching or enlarging an opening or the lumen of a hollow structure.

dilation,

n widening or opening of any orifice in the body.

di·la·tion

, dilatation (dī-lā'shŭn, dil'ă-tā'shŭn)
1. Physiologic or artificial enlargement of a hollow structure or opening.
2. Stretching an opening of a hollow structure.

dilation (dīlā´shən),

n the act of stretching or dilating.

dilation

see dilatation.

dilatation, dilation

1. the condition, as of an orifice or tubular structure, of being dilated or stretched beyond normal dimensions.
2. the act of dilating or stretching. See under anatomical location, e.g. esophageal, cardiac, intestinal, gastric, pupillary.

dilatation-torsion syndrome
see gastric dilatation-volvulus.
References in periodicals archive ?
New sizing offered by Olympus enables inflation at half-millimeter intervals for more controlled, gradual dilation and a broader offering of unique diameters, when compared to the industry standard.
The phenomenon of time dilation is caused by the interaction between matter's twister constructs and the fundamental medium.
Balloon sinus dilation has evolved over the past decade and has been found to be a safe and effective procedure.
Subtypes can help determine management, as Type III has the worst overall prognosis, and Type II has the best prognosis when treated with pneumatic dilation or myotomy.
Complete resolution of dysphagia, defined as a dysphagia score of 0, occurred in 23% of the dilation group and 57% of the no-dilation controls, not a statistically significant difference.
In terms of the type of dilator used, radial dilation (such as with the use of an inflatable urethra-specific balloon catheter) may be preferred over longitudinal dilation, as it avoids the possibility of longitudinal mucosal shearing, with submucosal hemorrhage, hematoma and/or inflammation.
Flow-mediated dilation responses increased significantly among those receiving the supplement in comparison with subjects who received a placebo.
The historical evidence behind the commonly used assumption that 4-cm dilation signals the start of active labor contains methodological flaws, doesn't match today's population of pregnant women, and is contradicted by more recent studies supporting the 6-cm threshold, Tekoa King, C.
If you reach a vet during the dilation phase, odds of survival are fairly good.
Study researcher Ritch Savin-Williams, a developmental psychologist at Cornell University, said that this study is first large-scale experiment to show that pupil dilation matches what people report feeling turned on by.
After off-gassing, intraseptal coronary arteries were isolated and dilation to ACh recorded using videomicroscopy.
After the first dilation, I experienced "urgency and frequency" about six months postsurgery.