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Noun: periodical `pi(-u)-ree'ó-di-kul- A publication that appears at fixed intervals
Adjective: periodical `pi(-u)-ree'ó-di-kul- Happening or recurring at regular intervals
"the periodical appearance of the seventeen-year locust" - periodic
Derived forms: periodicals See also: annual, biannual, biennial, bimestrial, bimonthly, biweekly, biyearly, cyclic, daily, day-after-day, day-by-day, day-to-day, diurnal, fortnightly [Brit], half-hourly, half-yearly, hebdomadal, hebdomadary, hourly, midweekly, monthly, nightly, oscillating, oscillatory, period, periodically, semestral, semestrial, semiannual, semimonthly, semiweekly, triennial, weekly, yearly Type of: publication Encyclopedia: Periodical |