intercalate

Borrowed from Latin intercalātus, perfect passive participle of intercalō.

intercalate (third-person singular simple present intercalates, present participle intercalating, simple past and past participle intercalated)

1. To insert an extra leap day into a calendar in order to maintain synchrony with natural phenomena.
   • 1844, Ralph Waldo Emerson, Essays: Second Series, ch. 2:

     '[T]is wonderful where or when we ever got anything of this which we call wisdom, poetry, virtue. We never got it on any dated calendar day. Some heavenly days must have been intercalated somewhere.

2. To insert an extra month into a calendar for the same purpose. The Hebrew calendar has such a month.
3. (molecular biology) To insert a substance between two or more molecules, bases, cells, or tissues.

• deintercalate
• intercalary
• intercalation

intercalate

1. second-person plural present indicative of intercalare
2. second-person plural imperative of intercalare
3. feminine plural of intercalato

• anelettrica, intratecale

intercalāte

1. second-person plural present active imperative of intercalō