Definition of periodical
(Entry 1 of 2)
2a
: published with a fixed interval between the issues or numbers
b
: published in, characteristic of, or connected with a periodical
periodical
nounDefinition of periodical (Entry 2 of 2)
: a periodical publication
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Merriam-Webster unabridged
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Time Traveler for periodical
The first known use of periodical was in 1585
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