periodic

See also: periòdic

English

Etymology 1

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.

Pronunciation

A graph of the sine function, a periodic function

• (Received Pronunciation) IPA^(key): /ˌpɪɹiˈɒdɪk/, /ˌpɪə-/
• (General American) IPA^(key): /ˌpɪɹiˈɑdɪk/

• Audio (General American):

  (file)

• Rhymes: -ɒdɪk
• Hyphenation: pe‧ri‧od‧ic

Adjective

periodic (not comparable)

1. Relative to a period or periods.
2. Having repeated cycles.

   Synonym: cyclic

   • 1899, Stephen Crane, chapter 1, in Twelve O'Clock:

     There was some laughter, and Roddle was left free to expand his ideas on the periodic visits of cowboys to the town. “Mason Rickets, he had ten big punkins a-sittin' in front of his store, an' them fellers from the Upside-down-F ranch shot 'em up […].”

3. Occurring at regular intervals.

   Synonyms: cyclic; see also Thesaurus:periodic

4. Periodical.
5. (astronomy) Pertaining to the revolution of a celestial object in its orbit.

   Antonym: non-periodic

6. (mathematics, stochastic processes, of a state) For which any return to it must occur in multiples of $k$ time steps, for some $k>1$.

   Antonym: aperiodic

7. (rhetoric) Having a structure characterized by periodic sentences.

Derived terms

• aperiodic
• periodic classification
• periodic comet
• periodic continued fraction
• periodic function
• periodic inequality
• periodic inventory
• periodicize
• periodic law
• periodic month
• periodic structure
• periodic system
• periodic table
• quasi-periodic

Related terms

• period
• periodicity

Translations

relative to a period or periods

• Bulgarian: периодичен (bg) (periodičen)
• Finnish: jaksollinen (fi), aikakautinen
• French: périodique (fr) m or f
• Greek: περιοδικός (el) m (periodikós)
• Hungarian: szakaszos (hu), időszakos (hu)
• Italian: periodico (it)
• Japanese: 周期的 (ja) (shūki-teki)
• Kazakh: периодтық (periodtyq), периодты (periodty)
• Portuguese: periódico (pt)
• Swedish: period-

having repeated cycles

• Bulgarian: цикличен (bg) (cikličen)
• Catalan: periòdic (ca)
• Chinese:

  Mandarin: 週期的 / 周期的 (zh) (zhōuqí de)

• Czech: periodický m
• Danish: periodisk
• Finnish: jaksollinen (fi)
• French: périodique (fr) m or f
• German: periodisch (de)
• Greek: περιοδικός (el) m (periodikós)
• Hebrew: מחזורי (machzorí)
• Hungarian: ismétlődő (hu)
• Italian: periodico (it) m, periodica (it) f
• Japanese: 周期的 (ja) (shūki-teki)
• Polish: okresowy (pl) m, periodyczny (pl)
• Portuguese: periódico (pt)
• Russian: периоди́ческий (ru) (periodíčeskij)
• Spanish: periódico (es)
• Swedish: periodisk (sv)
• Ukrainian: періоди́чний (periodýčnyj)
• Yiddish: פּעריאָדיש (peryodish)

occurring at regular intervals

• Bulgarian: периодичен (bg) (periodičen)
• Catalan: periòdic (ca)
• Danish: periodisk
• Finnish: säännöllinen (fi), jaksollinen (fi)
• French: périodique (fr) m or f
• Greek: περιοδικός (el) (periodikós)
• Hungarian: periodikus (hu), időszaki (hu)
• Irish: tréimhsiúil
• Japanese: 周期的 (ja) (shūki-teki)
• Malay: berkala (ms)
• Maori: huirangi, kauteatea
• Norwegian:

  Bokmål: periodisk

  Nynorsk: periodisk

• Polish: okresowy (pl) m, periodyczny (pl)
• Portuguese: periódico (pt)
• Swedish: periodisk (sv), regelbunden (sv)
• Ukrainian: періоди́чний (periodýčnyj)
• Yiddish: פּעריאָדיש (peryodish)

periodical

• Danish: periodisk
• Finnish: jaksollinen (fi), kausittainen
• Greek: περιοδικό (el) n (periodikó)
• Japanese: 周期的 (ja) (shūki-teki)
• Maori: putaputa
• Swedish: periodisk (sv)

(astronomy) pertaining to the revolution of a celestial object in its orbit

• Finnish: jaksollinen (fi)
• Irish: tréimhsiúil
• Japanese: 周期的 (ja) (shūki-teki)
• Swedish: periodisk (sv)

(mathematics) of a state

• Bulgarian: периодичен (bg) (periodičen)
• Finnish: jaksollinen (fi)
• Hebrew: מחזורי (machzorí)

(rhetoric) having structure characterized by periodic sentences

• Bulgarian: реторичен (retoričen)

The translations below need to be checked and inserted above into the appropriate translation tables. See instructions at Wiktionary:Entry layout § Translations.

Translations to be checked

• Irish: ^{(please verify)} tréimhsiúil, ^{(please verify)} féiltiúil
• Spanish: ^{(please verify)} periódico (es)

Etymology 2

From per- +‎ iodic.

Pronunciation

• enPR: "pûrīŏd'ĭk, IPA^(key): /ˌpɜːɹaɪˈɒdɪk/

  • Audio (Southern England):

    (file)

Adjective

periodic (not comparable)

2. Relating to the highest oxidation state of iodine; of or derived from a periodic acid.

Derived terms

• metaperiodic
• orthoperiodic
• periodate
• periodic acid

Anagrams

• poricide

Ladin

Adjective

periodic m pl

1. plural of periodich

Romanian

Etymology

Borrowed from Latin periodicus or Ancient Greek περιοδικός (periodikós) or French périodique. By surface analysis, period +‎ -ic.

Adjective

periodic m or n (feminine singular periodică, masculine plural periodici, feminine and neuter plural periodice)

1. periodic

Declension

Declension of periodic

		singular				plural
		masculine	neuter	feminine		masculine	neuter	feminine
nominative- accusative	indefinite	periodic		periodică		periodici	periodice
	definite	periodicul		periodica		periodicii	periodicele
genitive- dative	indefinite	periodic		periodice		periodici	periodice
	definite	periodicului		periodicei		periodicilor	periodicelor