An eye with a dilated pupil.
An example of dilate is when your eyes become wide with excitement.
transitive verb-·lat·ed, -·lat·ing
Origin of dilateMiddle English dilaten from Classical Latin dilatare from dis-, apart + latus, wide: see lateral
- to become wider or larger; swell
- to speak or write in detail (on or upon a subject)
verbdi·lat·ed, di·lat·ing, di·lates
- To become wider or larger; expand.
- To speak or write at great length on a subject; expatiate.
Origin of dilateMiddle English dilaten from Old French dilater from Latin dīlātāre to enlarge dī-, dis- apart ; see dis- . lātus wide
(third-person singular simple present dilates, present participle dilating, simple past and past participle dilated)