ˈsiŋkrəˌnizəm, ˈsink- noun
( -s )
Etymology: Late Latin synchron os synchronous + English -ism
1. : the quality or state of being synchronous or simultaneous : concurrence of acts, events, or developments in time : coincident movement or existence : simultaneousness
find a general synchronism in the secular and religious phase of lyric growth — H.O.Taylor
2. : chronological arrangement of historical events and personages so as to indicate coincidence or coexistence ; also : a table showing such concurrences
in that book were … synchronisms of the kings of Ireland with the kings and emperors of the world — Irish Digest
3.
a. : a representation in the same picture of two or more events which occurred at different times
b. : historical accuracy in detail in period architecture or interior decoration
4.
a. : the state of having the same period or the same period and phase
b. : the condition of excessive rolling obtaining when a ship's rolling period is equal to the wave period or to one half the wave period
5. : the concurrence in time of the picture image and the corresponding sound during projection on a motion-picture or television screen