Synonyms/Hypernyms (Ordered by Estimated Frequency) of noun dilation

2 senses of dilation

Sense 1
dilation -- (a lengthy discussion (spoken or written) on a particular topic)
       => discussion, treatment, discourse -- (an extended communication (often interactive) dealing with some particular topic; "the book contains an excellent discussion of modal logic"; "his treatment of the race question is badly biased")

Sense 2
dilation, dilatation -- (the act of expanding an aperture; "the dilation of the pupil of the eye")
       => expansion, enlargement -- (the act of increasing (something) in size or volume or quantity or scope)