Definition of Dilate

Verb: dilate 'dI,leyt or dI'leyt [N. Amer], dI'leyt [Brit]

Become wider
"His pupils were dilated";
- distend
Add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing
- elaborate, lucubrate [archaic], expatiate, exposit, enlarge, flesh out, expand, expound