Meaning of DILATATION in English


— dilatational , adj.

/dil'euh tay"sheuhn, duy'leuh-/ , n.

1. a dilated formation or part.

2. Pathol. an abnormal enlargement of an aperture or a canal of the body.

3. Surg.

a. an enlargement made in a body aperture or canal for surgical or medical treatment.

b. a restoration to normal patency of an abnormally small body opening or passageway, as of the anus or esophagus.

4. Mech. the increase in volume per unit volume of a homogeneous substance.

Also, dilation .

[ 1350-1400; ME ( dilatation- (s. of dilatatio ), equiv. to dilatat ( us ) spread out (ptp. of dilatare to DILATE) + ion- -ION ]

Random House Webster's Unabridged English dictionary.      Полный английский словарь Вебстер - Random House .