Noun: dilatation ,di-lu'tey-shun
- The act of expanding an aperture
"the dilatation of the pupil of the eye";
- dilation
- The state of being stretched beyond normal dimensions
"The dilatation of her pupils was a sign of interest";
- distension, distention
Derived forms: dilatations
Type of: enlargement, expansion, physical condition, physiological condition, physiological state
Encyclopedia: Dilatation