Meaning of PERIODICAL in English

PERIODICAL

[pe.ri.od.i.cal] adj (1601) 1: periodic 1

2. a: published with a fixed interval between the issues or numbers b: published in, characteristic of, or connected with a periodical

[2]periodical n (1798): a periodical publication

Merriam-Webster English vocab.      Английский словарь Merriam Webster.