from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To make wider or larger; cause to expand.
- intransitive v. To become wider or larger; expand.
- intransitive v. To speak or write at great length on a subject; expatiate.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To enlarge; to make bigger.
- v. To become wider or larger; to expand.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To expand; to distend; to enlarge or extend in all directions; to swell; -- opposed to
- transitive v. To enlarge upon; to relate at large; to tell copiously or diffusely.
- intransitive v. To grow wide; to expand; to swell or extend in all directions.
- intransitive v. To speak largely and copiously; to dwell in narration; to enlarge; -- with on or upon.
- adj. Extensive; expanded.
from The Century Dictionary and Cyclopedia
- To expand; distend; spread out; enlarge or extend in all directions: as, air dilates the lungs; to dilate the pupil of the eye.
- To set forth at length; relate at large; relute or describe with full particulars; enlarge upon.
- Synonyms To swell, spread out, amplify.
- To spread out; expand; distend; swell; enlarge.
- To speak at length; dwell on particulars; enlarge; expatiate; descant: used absolutely or with upon or on.
- Broad; extended.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. become wider
- v. add details, as to an account or idea; clarify the meaning of and discourse in a learned way, usually in writing
Middle English dilaten, from Old French dilater, from Latin dīlātāre, to enlarge : dī-, dis-, apart; see dis- + lātus, wide.(American Heritage® Dictionary of the English Language, Fourth Edition)
From Old (and modern) French dilater, from Latin dilatare ‘spread out’, from di- + latus ‘wide’. (Wiktionary)