Intercalation

in·ter·ca·late  (n-tûrk-lt)

tr.v. in·ter·ca·lat·ed, in·ter·ca·lat·ing, in·ter·ca·lates

1. To insert (a day or month) in a calendar.

2. To insert, interpose, or interpolate.

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[Latin intercalre, intercalt- : inter-, inter- + calre, to proclaim; see kel-² in Indo-European roots.]

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in·terca·lation n.

in·terca·lative adj.

Thesaurus

Noun

1.

intercalation - an insertion into a calendar embolism calendar - a system of timekeeping that defines the beginning and length and divisions of the year interval, time interval - a definite length of time marked off by two instants