periodic

/ˌpɪɹiˈɑdɪk/

appearing or occurring at intervals

periodic in a sentence

“The periodic table organizes elements by their properties.”

Greek periodikos coming round at intervals (peri around + hodos way)

Related Words

recurrent

occurring often or repeatedly

incessant

continuing without pause or interruption

infrequent

not occurring often; rare

ubiquitous

present, appearing, or found everywhere

pervasive

spreading widely throughout an area or group

quotidian

occurring every day; ordinary or everyday