noun, plural se·ries.


Electricity. consisting of or having component parts connected in series: a series circuit; a series generator.

Nearby words

  1. sericin,
  2. sericite,
  3. serictery,
  4. sericulture,
  5. seriema,
  6. series circuit,
  7. series comma,
  8. series resonance,
  9. series-wound,
  10. serif

Origin of series

1605–15; < Latin seriēs; akin to serere to connect

1. Series, sequence, succession are terms for an orderly following of things one after another. Series is applied to a number of things of the same kind, usually related to each other, arranged or happening in order: a series of baseball games. Sequence stresses the continuity in time, thought, cause and effect, etc.: The scenes came in a definite sequence. Succession implies that one thing is followed by another or others in turn, usually though not necessarily with a relation or connection between them: succession to a throne; a succession of calamities.

Related formsmul·ti·se·ries, noun, plural mul·ti·se·ries.sub·se·ries, noun, plural sub·se··per·se·ries, noun, plural su·per·se·ries. Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019

Examples from the Web for series

British Dictionary definitions for series


noun plural -ries

a group or connected succession of similar or related things, usually arranged in order
a set of radio or television programmes having the same characters and setting but different stories
a set of books having the same format, related content, etc, published by one firm
a set of stamps, coins, etc, issued at a particular time
maths the sum of a finite or infinite sequence of numbers or quantitiesSee also geometric series
  1. 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)
  2. (as modifier)a series circuit Compare parallel (def. 10)
rhetoric a succession of coordinate elements in a sentence
geology a stratigraphical unit that is a subdivision of a system and represents the rocks formed during an epoch

Word Origin for series

C17: from Latin: a row, from serere to link

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for series



1610s, "a number or set of things of one kind arranged in a line," from Latin series "row, chain, series, sequence, succession," from serere "to join, link, bind together, arrange, attach, put; join in speech, discuss," from PIE root *ser- (3) "to line up, join" (cf. Sanskrit sarat- "thread," Greek eirein "to fasten together in rows," Gothic sarwa (plural) "armor, arms," Old Norse sörve "necklace of stringed pearls," Old Irish sernaid "he joins together," Welsh ystret "row").

Meaning "set of printed works published consecutively" is from 1711. Meaning "set of radio or television programs with the same characters and themes" is attested from 1949. Baseball sense "set of games on consecutive days between the same teams" is from 1862.

Online Etymology Dictionary, © 2010 Douglas Harper

Medicine definitions for series



n. pl. series

A number of objects or events arranged or coming one after the other in succession.
A group of objects related by linearly varying successive differences in form or configuration, as in a radioactive decay series.

The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.

Science definitions for series



The sum of a sequence of terms, for example 2 + 22 + 23 + 24 + 25 + …
A group of rock formations closely related in time of origin and distinct as a group from other formations.
The American Heritage® Science Dictionary Copyright © 2011. Published by Houghton Mifflin Harcourt Publishing Company. All rights reserved.