periodic
UK /ˌpɪɹiˈɒdɪk/ · US /ˌpɪɹiˈɑdɪk/ adjective
- adjective Relative to a period or periods.
- adjective Having repeated cycles.
- adjective Occurring at regular intervals.
- adjective Periodical.
- adjective (astronomy) Pertaining to the revolution of a celestial object in its orbit.
- adjective (mathematics, stochastic processes, of a state) For which any return to it must occur in multiples of k time steps, for some k>1.
- adjective (rhetoric) Having a structure characterized by periodic sentences.
- adjective Relating to the highest oxidation state of iodine; of or derived from a periodic acid.
Synonyms
Antonyms
non-periodic aperiodic acyclical irregular noncyclic noncyclical unperiodic
Etymology
From French périodique, from Medieval Latin periodicus (“cyclical”), from Latin periodus (“complete sentence, period, circuit”), from Ancient Greek περίοδος (períodos, “cycle, period of time”). By surface analysis, period + -ic.
From per- + iodic.
Webster’s 1913
- adjective Pertaining to, derived from, or designating, the highest oxygen acid (HIO
- adjective Of or pertaining to a period or periods, or to division by periods.
- adjective Performed in a period, or regular revolution; proceeding in a series of successive circuits; as, the periodical motion of the planets round the sun.
Etymology [Pref. per- + iodic.]
Etymology [L. periodicus, Gr. périodique.]
Sources: Wiktionary · WordNet 3.0 · Webster’s 1913 — from the Wiktionary entry “periodic”, CC BY-SA 4.0. Details