Definition of "Series" :

noun: (mathematics) the sum of a finite or infinite sequence of expressions

noun: a periodical that appears at scheduled times

noun: a serialized set of programs

"A comedy series."

noun: (sports) several contests played successively by the same teams

"The visiting team swept the series."

noun: similar things placed in order or happening one after another

"They were investigating a series of bank robberies."

noun: 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."

noun: (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."