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. [Latin intercalāre, intercalāt- : inter-, inter- + calāre, to proclaim; see kelə-2 in the Appendix of Indo-European roots.] in·ter′ca·lation n. in·terca·la′tive adj. |
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