[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
[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. 2012