Dil`a*ta"tion (?), n. [OE. dilatacioun, F. dilatation, L. dilatatio, fr. dilatare. See Dilate, and cf. 2d Dilation.]
1.
Prolixity; diffuse discourse.
[Obs.] "What needeth greater
dilatation?"
Chaucer.
2.
The act of dilating; expansion; an enlarging on al sides; the state of being dilated; dilation.
3. Anat.
A dilation or enlargement of a canal or other organ.
© Webster 1913.