periodic
1- 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.
- Astronomy.
- 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 periodic
1periodic
2- of or derived from a periodic acid.
Origin of periodic
2Related Words for periodic
yearly, recurrent, intermittent, annual, occasional, repeated, regular, routine, sporadic, seasonal, monthly, recurring, weekly, periodical, alternate, cyclical, daily, infrequent, perennial, rhythmicExamples from the Web for periodic
Contemporary Examples of periodic
The periodic agony that accompanies sickle cell was joined by the torment of persistent eye infections and repeated surgeries.
And even now that ISIS has retreated from the area, it is still subject to periodic attacks from the Assad regime.
Millions of Refugees from Syria’s War Are Clinging to Life In Toxic ConditionsChristopher Looney
April 14, 2014
And when you review the periodic table, take special note of Tungsten, or Wolfram.
Conditioning the Fed to react less to periodic market tantrums will take a strong will.
There were periodic beatings where the guards would enter with canes.
Historical Examples of periodic
The periodic or compensating errors of the planets is another instance.
Essays, First SeriesRalph Waldo Emerson
But what was his surprise to observe that these alterations were not of an annually periodic character.
Great AstronomersR. S. Ball
The periodic time of the moon is the interval required for one circuit of its orbit.
Great AstronomersR. S. Ball
His hopes for the best had been but periodic interruptions to a chronic fear of the worst.
A Pair of Blue EyesThomas Hardy
Juno was to at once begin her first contribution to periodic literature.
periodic
- 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 periodic
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).
periodic
(pîr′ē-ŏd′ĭk)- Having or marked by repeated cycles.
- Recurring at regular intervals.