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Meaning of intercalate

in•ter•ca•late

Pronunciation: (in-tûr'ku-lāt"), [key]
— -lat•ed, -lat•ing.
  1. to interpolate; interpose.
  2. to insert (an extra day, month, etc.) in the calendar.
Random House Unabridged Dictionary, Copyright © 1997, by Random House, Inc., on Infoplease.
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