dilatation(redirected from dilatational)
Also found in: Thesaurus, Medical, Legal, Encyclopedia.
Related to dilatational: dilatational wave
dil•a•ta•tion(ˌdɪl əˈteɪ ʃən, ˌdaɪ lə-)
1. a dilated formation or part.
2. an abnormal enlargement of an organ, aperture, or canal of the body.
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.
[1350–1400; Middle English (< Old French) < Latin]
The expanding or enlarging of a part of the body. See D C.
Switch to new thesaurus
|Noun||1.||dilatation - the state of being stretched beyond normal dimensions|
physical condition, physiological condition, physiological state - the condition or state of the body or bodily functions
tympanites - distension of the abdomen that is caused by the accumulation of gas in the intestines or the peritoneal cavity
varicocele - dilatation of the veins associated with the spermatic cord in the testes
|2.||dilatation - the act of expanding an aperture; "the dilation of the pupil of the eye"|
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