1. A number
of things or events standing or succeeding in order, and connected by a like
relation; sequence; order; rate; a succession of things; as, a continuous series
of calamitous events. "During some years his life
of triumphs." (Macaulay)
2. Any comprehensive group of animals or plants including different subordinate related groups.
Sometimes a series includes different classes; sometimes only orders or families; in another cases only species.
3. An vague number of terms succeeding one other, every of which is derived from one or more of the preceding by a fixed law, called the law of the series; as, an arithmetical series; a geometrical series.
Origin: L. Series, fr. Serere, sertum, to join or bind together; cf. Gr. To fasten, Skr. Sarit thread. Cf. Assert, Desert a solitude, Exert, Insert, Seraglio.
Source: Websters Vocabulary