noun pl. series -·ries

1. a group or number of similar or related things arranged in a row a series of arches
2. a group or number of related or similar persons, things, or events coming one after another; sequence; succession
3. a number of things produced as a related group; set, as of books or television programs, related in subject, format, etc., or dealing with the same characters
4. Bowling a set of three consecutive games
5. Elec. an arrangement of devices in a circuit, in which the current flows sequentially through a series of components: used chiefly in the phrase in series
6. Geol. a subdivision of a system of stratified rocks, consisting of the rocks laid down during a geologic epoch
7. Math. the sum of a sequence, often infinite, of terms usually separated by plus signs or minus signs (Ex.: 1 + 3 + 5 + 7)
8. Rhetoric a group of successive coordinate elements of a sentence

Etymology: L < serere, to join or weave together < IE base *ser-, to line up, join > Gr eirein, to join together, OE searu, a snare, armor, ON sørvi, necklace

adjective