Dictionary 1. (n.) The obstruction of a blood vessel by an embolus such as a bubble or clot\. Embolism in the brain often produces sudden unconsciousness and paralysis.2. (n.) Intercalation; the insertion of days, months, or years, in an account of time, to produce regularity; as, the embolism of a lunar month in the Greek year. 3. (n.) Intercalated time. Thesaurus bar barrier blank wall blind alley blind gut block blockade blockage bottleneck cecum choking choking off clog congestion constipation costiveness cul-de-sac dead end embolus gorge impasse impediment infarct infarction jam obstacle obstipation obstruction sealing off stop stoppage strangulation |