Webster’s Revised Unabridged Dictionary · 1913
Embolism
Em′bo·lism (ĕm′bō·lĭz'm), n. [L. embolismus, from Gr. ἐμβάλλειν to throw or put in, insert; cf. ἐμβόλιμος intercalated: cf. F. embolisme. See Emblem.] 1. 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.
2. Intercalated time. Johnson.
3. (Med.) The occlusion of a blood vessel by an embolus. Embolism in the brain often produces sudden unconsciousness and paralysis.