periodical Pronunciation: /pɪərɪˈɒdɪkl/Translate periodical | into French | into Italian | into Spanish German translation of periodicalA. adj. see periodicB. n. Zeitschrift weekly/monthly periodical = Wochenzeitschrift/Monatsschriftperiodical in other Oxford dictionaries Definition of periodical in the British & World English dictionary Definition of periodical in the US English dictionary