- recurring at intervals of time: periodic revivals of an interest in handicrafts.
- occurring or appearing at regular intervals: periodic visits by doctors to the village.
- repeated at irregular intervals; intermittent: periodic outbreaks of the disease.
- Physics. recurring at equal intervals of time.
- Mathematics. (of a function) having a graph that repeats after a fixed interval (period) of the independent variable.
- characterized by a series of successive circuits or revolutions, as the motion of a planet or satellite.
- of or relating to a period, as of the revolution of a heavenly body.
- pertaining to or characterized by rhetorical periods, or periodic sentences.
Origin of periodic1
Examples from the Web for periodically
Time passed, and periodically a scholarly blog would raise a metaphorical eyebrow about the lack of test results.The ‘Gospel of Jesus’s Wife’ is Still as Big a Mystery as Ever
April 13, 2014
Nor one of those tropical torments that periodically lash the country.What Venezuela Can Learn From Miss Universe
November 13, 2013
Some periodically cross the border back into Syria to check in on businesses and collect incomes.How Palestinian Refugees from Syria are Forced to Compete in Lebanon and Jordan
November 6, 2013
Second funniest, midwife asked me to rate my pain 1-10 periodically and at one point I said 9.Penis Beakers and Constipated Dolls: What Mothers REALLY Want To Know
October 11, 2013
“They were together for about a year, and then after that year, periodically from time to time,” Herman said.‘I Always Felt It Was Creepy’: Stories of Sex With Elmo Puppeteer Kevin Clash
Maria Elena Fernandez
December 6, 2012
He had increased also the amount of money that he periodically sent East.K
Mary Roberts Rinehart
Still there the conscience was, and periodically she had to take account of it.
Periodically, it made her uncomfortable on the subject of her eldest son.
It has been my custom, M. Gianapolis, for many years, periodically to visit that fairyland.The Yellow Claw
This sometimes appears only periodically, and is often relieved by quinine.
- happening or recurring at intervals; intermittent
- of, relating to, or resembling a period
- having or occurring in repeated periods or cycles
Word Origin and History for periodically
1640s, from French périodique (14c.), from Latin periodicus, from periodus (see period).
Periodic table in chemistry (1889) is from notion of the arrangement, in which similar properties recur at intervals in elements in the same area as you read down the rows of the table. This sense of the word is attested from 1872 (periodic law).
- Having or marked by repeated cycles.
- Recurring at regular intervals.