dilatation

di·la·ta·tion

noun \ˌdil-ə-ˈtā-shən, ˌdī-lə-\

Definition of DILATATION

1

: the condition of being stretched beyond normal dimensions especially as a result of overwork or disease or of abnormal relaxation <dilatation of the heart> <dilatation of the stomach>

2

: dilation 2