periodical suomeksi - Sanakirja.org (englanti-suomi)

A publication issued regularly, but less frequently than daily.
A publication that appears at fixed intervals.
A publication that often contains the most current information in the field, on every conceivable topic, often in greater detail than other publication formats.
The primary means for communication of original scholarship or creative work at the cutting edge of research in almost all fields.

Periodic.
Published at regular intervals of more than one day, especially weekly, monthly, or quarterly.
Of, or relating to such a publication.

The periodical times of all the satellites.
Last spring, the periodical cicadas emerged across eastern North America. Their vast numbers and short above-ground life spans inspired awe and irritation in humans—and made for good meals for birds and small mammals.
To influence opinion through the periodical press.

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