intercalation

Etymology
From, from +.

Noun

 * 1) A period inserted into a calendar as in a leap year.
 * 2)  The reversible insertion of a molecule between two others.
 * 3)  A layer introduced into a pre-existing sequence.

Translations

 * French:
 * Hungarian: interkaláció, szökőnap beszúrása/​betoldása/​közbeiktatása
 * Polish:
 * Romanian:


 * Bulgarian: интеркалация
 * Hungarian: interkaláció