Her eyes are dilated.

She's having contractions. How dilated is her cervix?

Roman women would dilate their pupils with belladonna because they believed this made them more attractive. Eye doctors still use belladonna during eye exams.

How dilated is her cervix?

Tom's pupils became dilated.

One eye is dilated.

My eyes were dilated.

Tom's pupils are dilated.

I hate the drops doctors use to dilate my eyes for an eye exam.