from The American Heritage® Dictionary of the English Language, 4th Edition
- transitive v. To insert (a day or month) in a calendar.
- transitive v. To insert, interpose, or interpolate.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- v. To insert an extra, leap, day into a calendar in order to maintain synchrony with natural phenomena.
- v. To insert an extra month into a calendar for the same purpose. The Hebrew calendar has such a month.
- v. To insert a substance between two or more molecules, bases, cells, or tissues.
from the GNU version of the Collaborative International Dictionary of English
- transitive v. To insert, as a day or other portion of time, in a calendar.
- transitive v. To insert among others, as a verse in a stanza; specif. (Geol.), to introduce as a bed or stratum, between the layers of a regular series of rocks.
from The Century Dictionary and Cyclopedia
- In chronology, to insert in the calendar by proclamation or authority, as an extra day or month. See intercalary, 1.
- Hence To insert between others; introduce interstitially; interject or interpolate, as something irregular or unrelated.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- v. insert (days) in a calendar
Latin intercalāre, intercalāt- : inter-, inter- + calāre, to proclaim; see kelə-2 in Indo-European roots.(American Heritage® Dictionary of the English Language, Fourth Edition)
Latin intercalātus, perfect passive participle of intercalō. (Wiktionary)