periodic

形容词 adj.
中文释义
英 /ˌpɪɹiˈɒdɪk/|/ˌpɪə-/    美 /ˌpɪɹiˈɑdɪk/

英文释义

形容词 adj.
  1. Relative to a period or periods. not-comparable
  2. Relating to the highest oxidation state of iodine; of or derived from a periodic acid. not-comparable
  3. Having repeated cycles. not-comparable
    — 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 […].”
  4. Occurring at regular intervals. not-comparable
    — That last problem did intrude on Hazzard’s roamings, and when she refers to the living city it is with periodic references to thefts of cars and wallets, with a warning not to carry anything “snatchable” by the thieves on motorcycles who whiz through the streets.
  5. Periodical. not-comparable
  6. Pertaining to the revolution of a celestial object in its orbit. not-comparable
  7. For which any return to it must occur in multiples of k time steps, for some k>1. not-comparable
  8. Having a structure characterized by periodic sentences. not-comparable,rhetoric

词汇关系

近义词
cyclic cyclical periodic periodical regular
反义词
acyclical irregular noncyclic noncyclical unperiodic
上位词
discontinuous orderly repetitive
下位词
In terms of hours: bihourly circhoral half-hourly horary hourly hourwise quarter-hourly semihourly subhourly two-hourly In terms of days: bidaily circadian daily diurnal per diem quotidian semi-daily semidiurnal tertian tridaily In terms of weeks: biweekly circaseptan fortnightly hebdomadal hebdomadary semi-weekly twi-weekly twice-weekly weekly weeklyish In terms of months: bimensal bimestrial bimonthly half-monthly mensal menstrual menstruous monthly monthlyish quarterly semimenstrual semimonthly submonthly thrice-monthly trimestral trimonthly In terms of years: annual biannual biennary biennial half-yearly pentennial quadrennial quinquennial quintennial semestral semiannual triennial trieterical twice-yearly yearly In terms of centuries: bicentennial centennial multicentennial semicentennial sesquicentennial tricentennial Other: seasonal secular
衍生词
antiperiodic aperiodic biperiodic diperiodic equiperiodic extraperiodic isoperiodic monoperiodic multiperiodic nonperiodic omniperiodic periodically periodic classification periodic comet periodic continued fraction periodic function periodic inequality periodic inventory periodicize periodic law periodic month periodic structure periodic system periodic table photoperiodic preperiodic pseudoperiodic quasi-periodic quasiperiodic semiperiodic subperiodic superperiodic thermoperiodic uniperiodic unperiodic
相关词
period periodicity catamenial

词源

词源 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.
词源 2
Etymology tree
Proto-Indo-European *per-
Proto-Italic *per
Latin perbor.
Proto-Indo-European *per-der.
Proto-Italic *peri-
Latin per-bor.
English per-
English iodic
English periodic
From per- + iodic.
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