¦ noun (plural same)
1. a number of similar or related things coming one after another.
a set of books, periodicals, etc., published in a common format.
a set of stamps, banknotes, or coins issued at a particular time.
2. a sequence of related television or radio programmes.
4. [as modifier] having or denoting electrical components connected in series.
5. Geology a range of strata corresponding to an epoch in time, being a subdivision of a system and itself subdivided into stages.
6. Mathematics a set of quantities constituting a progression or having values determined by a common relation.
Phrases
in series (of electrical components or circuits) arranged so that the current passes through each successively.
Origin
C17: from L., lit. 'row, chain', from serere 'join, connect'.