dilatation

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Related to dilatational: dilatational wave

dilatation

 [dil″ah-ta´shun]
1. the condition, as of an orifice or tubular structure, of being dilated or stretched beyond normal dimensions by medications or instrumentation.
2. the act of dilating or stretching.
dilatation of the heart compensatory enlargement of the cavities of the heart, with thinning of the walls.

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]

dilatation

/dil·a·ta·tion/ (dil″ah-ta´shun)
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.

dilatation of the heart  compensatory enlargement of the cavities of the heart, with thinning of its walls.
segmental dilatation  dilatation of a portion of a tubular structure, such as the intestine, the segments on either side of the dilatation being of normal caliber.

dilatation

(dĭl′ə-tā′shən, dī′lə-)
n.
Dilation.

dil′a·ta′tion·al adj.

dilatation

See dilation.

dilatation

Widening. This may be a normal process or may imply stretching beyond normal dimensions, either as part of a disease process or as a deliberate surgical act.

dilatation

pathological or artificial enlargement of a blood vessel

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.

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 ?
The newly advanced computer program is used next to predict spherical inclusion interaction, and a critical interaction distance between two neighboring inclusions is advanced for the case when dilatational eigenstrains are uniform or vary linearly with the radius of the sphere.
Complications of bronchocopically guided percutaneous dilatational tracheostomy: beyond the learning curve.
To consider the dilatational deformation of polymer materials caused by hydrostatic stress, Lai and Bakker (28) prescribed
A chest X-ray (CXR) is routinely performed after percutaneous dilatational tracheostomy (PDT).
Once the stress levels increase to an excessive level, the particle-matrix interface fails (debonds) and provides a relief to dilatational stress much like cavitation of rubber particles do in soft-particle toughened systems.
3 represent the deviatoric and dilatational responses of the viscoelastic material with respect to the elapsed time (t - [tau]).
We read with interest the article published by Dr Kaiser and colleagues (1) on the comparison of progressive dilatational vs forceps dilatational percutaneous tracheostomy.
The stress and strain tensors can be expressed as the sum of two components: (1) Deviatoric (shear, distortion), and (2) Dilatational (volumetric, hydrostatic), as,
Assessment of ventilation during the performance of a percutaneous dilatational tracheostomy: hypoventilation is not a common complication.
All the above investigations have employed tension-torsional loading schemes, which yielded explicit effect of normal and dilatational stress components.