Definition of dilatation
1 : amplification in writing or speech
2 a : the condition of being stretched beyond normal dimensions especially as a result of overwork, disease, or abnormal relaxation <dilatation of the heart> <dilatation of the stomach> b : dilation 2
3 : the action of expanding : the state of being expanded
4 : a dilated part or formation
First Known Use of dilatation
Seen and Heard
What made you want to look up dilatation? Please tell us where you read or heard it (including the quote, if possible).