se·ries (sîr??z)n. pl. series 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. A succession of publications that present an extended narrative, such as a comic book series, or that have similar subjects or similar formats, such as a series of cookbooks.b. A succession of individual programs presented as parts of a unified whole, such as the set of episodes of a television show or a podcast.8. a. Sports A number of games played by the same two teams, often in succession.b. Baseball The World Series.9. Linguistics A set of vowels or diphthongs related by ablaut, as in sing, sang, sung, and song.Idiom: in series In an arrangement that forms a series.[Latin seri?s, from serere, to join; see ser- in Indo-European roots.]Synonyms: series, chain, progression, sequence, string, succession These nouns denote a number of things placed or occurring one after the other: a series of days, a series of facts; a chain of command, a chain of proof; a progression of courses toward a degree, a progression of prime numbers; a sequence of a chemical reactions, the sequence of events leading to the accident; a string of islands, a string of questions; a succession of failures, a succession of actors auditioning for the play.Usage Note: Series is both a singular and a plural form. When it has the singular sense of “one set,” it takes a singular verb, even when series is followed by of and a plural noun: A series of lectures is scheduled. When it has the plural sense of “two or more sets,” it takes a plural verb: Two series of lectures are scheduled: one for experts and one for laypeople.American Heritage® Dictionary of the English Language, Fifth Edition. Copyright © 2016 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.series (?s??ri?z; -r?z) n, pl -ries1. a group or connected succession of similar or related things, usually arranged in order2. (Broadcasting) a set of radio or television programmes having the same characters and setting but different stories3. (Journalism & Publishing) a set of books having the same format, related content, etc, published by one firm4. a set of stamps, coins, etc, issued at a particular time5. (Mathematics) maths the sum of a finite or infinite sequence of numbers or quantities. See also geometric series6. (Electronics) electronics a. a configuration of two or more components connected in a circuit so that the same current flows in turn through each of them (esp in the phrase in series)b. (as modifier): a series circuit. Compare parallel107. (Rhetoric) rhetoric a succession of coordinate elements in a sentence8. (Geological Science) geology a stratigraphical unit that is a subdivision of a system and represents the rocks formed during an epoch[C17: from Latin: a row, from serere to link]Collins English Dictionary ? Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014se?ries (?s??r iz) n., pl. -ries. 1. a group or a number of related or similar things, events, etc., arranged or occurring in temporal, spatial, or other order or succession; sequence. 2. a number of games, contests, or sporting events, with the same participants, considered as a unit. 3. a set, as of coins or postage stamps. 4. a set of successive volumes or of issues of a periodical published in like form with similarity of subject or purpose. 5. Radio and Television. a. a daily or weekly program with a set format, a regular cast of characters, and sometimes a continuing story, as a situation comedy or a soap opera. b. two or more programs related by theme, format, or the like: a series on African wildlife. 6. a sequence of terms combined by addition, as 1 + ½ + ¼ + ? + ? + ½ n. 7. a succession of coordinate sentence elements. 8. a division of stratified rocks that is of next higher rank to a stage and next lower rank to a system, comprising deposits formed during part of a geological epoch. 9. an arrangement of an electrical circuit in which the components are connected end-to-end, so that the same current flows through each component. 10. a group of related chemical elements arranged in order of increasing atomic number. [1605?15;