[em.bo.lism] n [ME embolisme, fr. ML embolismus, fr. Gk embol- (fr. emballein to insert, intercalate)--more at emblem] (14c) 1: the insertion of one or more days in a calendar: intercalation
2. a: the sudden obstruction of a blood vessel by an embolus b: embolus -- em.bo.lis.mic adj