D defs.my
Entry 3 senses Webster, 1913

Synchronism

· Syn·chro·nism · IPA
01 n. The concurrence of events in time; simultaneousness.
  1. 1.
    The concurrence of events in time; simultaneousness.
  2. 2.
    The tabular arrangement of historical events and personages, according to their dates.
  3. 3.
    A representation, in the same picture, of two or events which occured at different times.(Paint.)