1. A number of objects or events arranged or coming one after the other in succession.
2. A set of stamps, coins, or currency issued in a particular period.
3. Physics & Chemistry A group of objects related by linearly varying successive differences in form or configuration: a radioactive decay series; the paraffin alkane series.
4. mathematics the sum of a sequentially ordered finite or infinite set of terms.
5. geology A group of rock formations closely related in time of origin and distinct as a group from other formations.
6. grammar A succession of coordinate elements in a sentence.
7. A succession of usually continuously numbered issues or volumes of a publication, published with related authors or subjects and similar formats.
8. A succession of regularly aired television programs, each one of which is complete in and of itself.
9. sports A number of games played by the same two teams, often in succession.
10. baseball the world series.
11. linguistics A set of vowels or diphthongs related by ablaut, as in sing, sang, sung, and song.
12. in series in an arrangement that forms a series.

1. A number of things that follow on one after the other or are connected one after the other.
2. A television or radio program which consists of several episodes that are broadcast in regular intervals
3. A group of episodes of a television or radio program broadcast in regular intervals with a long break between each group, usually with one year between the beginning of each.
4. the sum of the terms of a sequence.
5. A group of matches between two sides, with the aim being to win more matches than the opposition.
6. an unranked taxon.
7. connected one after the other in a circuit.

1. A number of things or events standing or succeeding in order, and connected by a like relation; sequence; order; course; a succession of things.
2. any comprehensive group of animals or plants including several subordinate related groups.
3. in engler's system of plant classification, a group of families showing certain structural or morphological relationships. it corresponds to the cohort of some writers, and to the order of many modern systematists.
4. an indefinite number of terms succeeding one another, each of which is derived from one or more of the preceding by a fixed law, called the law of the series.
5. A mode of arranging the separate parts of a circuit by connecting them successively end to end to form a single path for the current; -- opposed to
6. A parcel of rough diamonds of assorted qualities.

1. A continued succession of similar things, or of things bearing a similar relation to one another; an extended order, line, or course; sequence; succession: as, a series of kings; a series of calamitous events; definitions arranged in several distinct series.
2. in geology, a set of strata possessing some common mineral or fossil characteristic: as, the greensand series; the Wenlock series.
3. in chem., a number of elements or compounds which have certain common properties and relations, or which exhibit, when arranged in orderly succession, a constant difference from member to member.
4. in numismatics, a set of coins made at any one place or time, or issued by any one sovereign or government.
5. in philately, a set of similar postage- or revenue-stamps.
6. in mathematics, a progression; also, more usually, an algebraic expression appearing as a sum of a succession of terms subject to a regular law.
7. in systematic bot., according to gray, the first group below kingdom and the next above class: equivalent to subkingdom or division (which see).
8. in zoology, a number of genera in a family, of families in an order, etc.; a section or division of a taxonomic group, containing two or more groups of a lower grade: loosely and variably used, like grade, group, cohort, phalanx, etc.
9. in ancient prosody, same as colon , 2.
10. in bibliography, a set of volumes, as of periodical publications or transactions of societies, separately numbered from another set of the same publication. abbreviated ser.
11. where
12. is equal to for values of
13. that the n th differential coefficient relatively to x should be equal to 2n! is the necessary and sufficient condition of n being prime.
14. A series which is convergent although if the signs of all the terms were the same (or their arguments considered as imaginaries were the same) it would be divergent.
15. in mathematics: A sequence of things such that the situation (before or after) of each can be told with respect to any other; a set.
16. in electricity, an arrangement of units of a group of cells, generators, or other electrical devices (such as condensers, resistance-coils, lamps, or the like), such that the positive terminal of the first is connected to the negative terminal of the second and so on. see series-connected.
17. A series not absolutely convergent.
18. in electricity see series-parallel circuit.
19. same as absolutely convergent series.

1. a periodical that appears at scheduled times
2. a serialized set of programs
3. (electronics) connection of components in such a manner that current flows first through one and then through the other
4. similar things placed in order or happening one after another
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
6. (mathematics) the sum of a finite or infinite sequence of expressions
7. (sports) several contests played successively by the same teams