pe|ri|od|ic

pe|ri|od|ic «_PIHR ee OD ihk», adjective.

1. occurring, appearing, or done again and again at regular intervals: »

periodic attacks of malaria.

2. happening every now and then: »

a periodic fit of clearing up one's desk.

3. of or having to do with a period: »

The coming of the new moon is a periodic occurrence.

4. expressed in formal or complete sentences: »

periodic writing, a periodic style.

╂[< Latin periodicus < Greek periodikós recurring at stated intervals < períodos period]