Meaning of PERIODICAL in English

PERIODICAL

n.

Publication whose issues appear at fixed or regular intervals.

Periodicals generally are considered to include newspapers , which usually have large, unfastened pages and contents with considerable immediacy; and magazines , or journals, which have smaller pages, are usually fastened or bound, and often have more specialized, less time-dependent contents.

Britannica Concise Encyclopedia.      Краткая энциклопедия Британика.