dilate on/upon

phrasal verb

dilated on/upon; dilating on/upon; dilates on/upon

formal

: to talk about (a subject) for a long time

We spent a long evening listening to him dilate on the need for tax relief.

Examples of dilate on/upon in a Sentence

Recent Examples on the Web

Sometimes there are obvious causes for the early rupturing of membranes, like a chlamydia infection or a condition called cervical insufficiency, in which the cervix starts to dilate on its own. —WIRED, 2 Aug. 2023