dilation


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Related to dilation: Cervical dilation

dilation

[də′lā·shən]
(mathematics)
A transformation which changes the size, and only the size, of a geometric figure.
An operation that provides a relatively flexible boundary to a fuzzy set; for a fuzzy set A with membership function mA, a dilation of A is a fuzzy set whose membership function has the value [mA (x)]βfor every element x, where β is a fixed number that is greater than 0 and less than 1.
(science and technology)
The act or process of stretching or expanding.
References in periodicals archive ?
According to Truven Health Analytics, approximately 492,000 balloon dilations are conducted each year in the United States.
The use of a lighted guidewire and telescope without fluoroscopy for balloon sinus ostia dilation.
15) LHM is typically favored for patients under 40, due to this group's increased risk of requiring redilation following treatment with pneumatic dilation.
Patients in the dilation group were dilated to the endpoint of mucosa] tear.
They concluded that women who had been contracting more than 24 hours had a prolonged latent phase, and that the slowest rate of dilation in the active phase of labor was 1.
The results showed that pupil dilation matches the pattern seen in genital arousal studies.
Arteries were treated for at least 30 min with various drug treatments or vehicle (Veh) in the supetfusate and in the lumen before dilation with increasing concentrations of ACh (0.
While dilation or other surgical interventions may work for some patients, the treatment has been applied to the broad population of IC sufferers, many of whom do not need it, as evidenced by the many patients for whom it had no positive effect.
Based on requests for a dilation system, SSI also recently introduced a system to provide surgeons using dilation additional options when using the Swivel Port family of products.
A CT angiogram was done after the initial operation that showed a suspected stenosis at the origin of the celiac artery with mild poststenotic dilation.
The infant responded to balloon dilation of the upper esophageal sphincter, with resolution of symptoms and return to presymptomatic growth parameters.