recurrent

Occurring or appearing again or repeatedly.

Turning in a reverse direction. Used of blood vessels and nerves.

In paleontology, reappearing without essential change in organic composition: used of faunas which reappear after their first disappearance from a given geological section, or of a species which thus returns after departure. The conception of recurrent faunas implies the fact of migration and temporary absence from a given geographical province with subsequent return thereto.

A recurrent verse.

Recurring; returning from time to time; reappearing; repeated.