add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing
She elaborated on the main ideas in her dissertation.
source: WordNet 3.0
To expand; to distend; to enlarge or extend in all directions; to swell; -- opposed to contract; as, the air dilates the lungs; air is dilated by increase of heat.
source: Webster 1913
To grow wide; to expand; to swell or extend in all directions.
