having reference to the facts of a linguistic system as it exists at one point in time without reference to its history: synchronic analysis; synchronic dialectology.
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.
1833 shortening of synchronical (1652), from L.L. synchronus "simultaneous" (see synchronous). Linguistic sense is first recorded 1922, probably a borrowing from Fr. synchronique (de Saussure, 1913).