Main Entry:

pe·ri·od·ic

Pronunciation:

\ˌpir-ē-ˈä-dik\

Function:

adjective

Date:

1642

1 a: occurring or recurring at regular intervals b: occurring repeatedly from time to time2 a: consisting of or containing a series of repeated stages, processes, or digits : cyclic <periodic decimals> <a periodic vibration> b: being a function any value of which recurs at regular intervals3: expressed in or characterized by periodic sentences