ETYM Latin series, from serere, sertum, to join or bind together; cf. Skr. sarit thread. Related to Assert, Desert a solitude, Exert, Insert, Seraglio.
(Homonym: Ceres).
1. A periodical that appears at scheduled times; SYN. serial, serial publication.
2. Similar things placed or happening one after another.
3. The sum of a finite or infinite sequence of expressions.