syn·chron·ic 
(sĭn-krŏnĭk, sĭng-)
(sĭn-krŏnĭk, sĭng-)adj.
1. Synchronous.
2. Of or relating to the study of phenomena, such as linguistic features, or of events of a particular time, without reference to their historical context.
syn·chroni·cal·ly adv.