from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. a period inserted into a calendar as in a leap year.
- n. The reversible insertion of a molecule between two others
- n. A layer introduced into a pre-existing sequence
from the GNU version of the Collaborative International Dictionary of English
- n. The insertion of a day, or other portion of time, in a calendar.
- n. The insertion or introduction of anything among others, as the insertion of a phrase, line, or verse in a metrical composition
from The Century Dictionary and Cyclopedia
- n. In chronology, an official insertion of additional time, as a day or a month, in the regular reckoning of the calendar, to make the year of the right length. See intercalary, 1.
- n. Hence The insertion of anything between other things; irregular interposition or interjection, as, in geology, the intrusion of layers or beds between the regular rocks of a series.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. an insertion into a calendar
(Can we verify(+) this etymology?) From intercalate (Wiktionary)