1.similar things placed in order or happening one after another;
they were investigating a series of bank robberies
2.a serialized set of programs;
a comedy series
3.a periodical that appears at scheduled times
4.(sports) several contests played successively by the same teams;
the visiting team swept the series
5.a group of postage stamps having a common theme or a group of coins or currency selected as a group for study or collection;
the Post Office issued a series commemorating famous American entertainers
6.(mathematics) the sum of a finite or infinite sequence of expressions
7.(electronics) connection of components in such a manner that current flows first through one and then through the other;
the voltage divider consisted of a series of fixed resistors