Entry 1 sense Webster, 1913 Parachronism /(pȧ*răk"rō̇*nĭz'm)/ · Pa·rach·ro·nism · IPA /pɚˈækɹənɪz(ə)m/ 01 n. An error in chronology, by which the date of an event is set later than the time of its occurrence. 1. An error in chronology, by which the date of an event is set later than the time of its occurrence.[R.]