a. Obs. Chronol. [f. EMBOLISM + -AL.] That pertains to embolism or intercalation. a. Of a year: That is lengthened by intercalation. b. Of a month: That is intercalated.
1681. Sir G. Wharton, Disc. Years, etc. Wks. (1683), 72. This year is two-fold, viz. Commune, containing 12 Synodical Lunations: or Embolismal, which containeth 13.
1679. Plot, Staffordsh. (1686), 426. There must needs be 7 Embolismal months.
