(mathematics) the sum of a finite or infinite sequence of expressions | the rare-earth elements with atomic numbers 57 through 71; having properties similar to lanthanum |
a periodical that appears at scheduled times | |
a serialized set of programs | |
(sports) several contests played successively by the same teams | |
similar things placed in order or happening one after another | |
a group of postage stamps having a common theme or a group of coins or currency selected as a group for study or collection | |
(electronics) connection of components in such a manner that current flows first through one and then through the other | |