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 time
2 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 intervals
3 : expressed in or characterized by periodic sentences