intercalation Meaning, Definition & Usage

  1. noun an insertion into a calendar
    embolism.

WordNet

In*ter`ca*la"tion noun
Etymology
L. intercalatio: cf. F. intercalation.
Definitions
  1. (Chron.) The insertion of a day, or other portion of time, in a calendar.
  2. The insertion or introduction of anything among others, as the insertion of a phrase, line, or verse in a metrical composition; specif. (Geol.), the intrusion of a bed or layer between other layers.
    Intercalations of fresh-water species in some localities. Mantell.

Webster 1913