The Collaborative International Dictionary of English v.0.48:

Embolismic \Em`bo*lis"mic\, Embolismical \Em`bo*lis"mic*al\, a.
   [Cf. F. embolismique.]
   Pertaining to embolism or intercalation; intercalated; as, an
   embolismic year, i. e., the year in which there is
   intercalation.
   [1913 Webster]