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[seer-eez] /ˈsɪər iz/
noun, plural series.
The two baseball clubs played a five-game series.
a set, as of coins or stamps.
Radio and Television.
  2. a number of related programs having the same theme, cast, or format:
    a series of four programs on African wildlife.
  1. a sequence of terms combined by addition, as 1 + ½ + ¼ + ⅛ + … ½ n.
  2. infinite series.
Rhetoric. a succession of coordinate sentence elements.
Compare parallel (def 13).
Chemistry. a group of related chemical elements arranged in order of increasing atomic number:
the lanthanide series.
Electricity. consisting of or having component parts connected in series:
a series circuit; a series generator.
Origin of series
1605-15; < Latin seriēs; akin to serere to connect
Related forms
multiseries, noun, plural multiseries.
subseries, noun, plural subseries.
superseries, noun, plural superseries.
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. Unabridged
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British Dictionary definitions for series


/ˈsɪəriːz; -rɪz/
noun (pl) -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
  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 (sense 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
C17: from Latin: a row, from serere to link
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition
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Word Origin and History for series



Online Etymology Dictionary, © 2010 Douglas Harper
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series in Medicine

series se·ries (sēr'ēz)
n. pl. series


  2. 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
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series in Science
  1. The sum of a sequence of terms, for example 2 + 22 + 23 + 24 + 25 + ...

  2. A group of rock formations closely related in time of origin and distinct as a group from other formations.

The American Heritage® Science Dictionary
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