Douglas Harper's Etymology Dictionary
Wiktionary
a. 1 Occurring over or changing with time. 2 Of, pertaining to or concerned with changes that occur over time.
WordNet
adj. used of the study of a phenomenon (especially language) as it changes through time; "diachronic linguistics" [syn: historical] [ant: synchronic]
Wikipedia
Diachronic or Diachronous, from the Greek word Διαχρονικός (Diakhronikos), is a term for something happening over time. It is used in several fields of research.
- Diachrony in linguistics, the analysis of a language over time in its historical development. See also Historical linguistics.
- Geology: see Diachronous
Usage examples of "diachronic".
There was a swift diachronic kaleidoscope of images and a quite interesting synthetic statement: Thats it I guess its quality for you and for your so send fifteen dollars only its Butch you love isnt it I guess so emphatic denial issued by.
In this respect, the decline and fall of Empire is defined not as a diachronic movement but as a synchronic reality.