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determinant

[dih-tur-muh-nuh nt]
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noun
  1. a determining agent or factor.
  2. Mathematics. an algebraic expression of the sum of products of elements, each with an appropriate algebraic sign, usually written in a square array and used in the solution of systems of linear equations.
  3. Also called antigenic determinant, epitope. Immunology. any site on an antigen molecule at which an antibody can bind, the chemical structure of the site determining the specific combining antibody.
  4. Genetics Archaic. a gene.
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Origin of determinant

1600–10; < Latin dēterminant- (stem of dētermināns), present participle of dētermināre. See determine, -ant
Related formsnon·de·ter·mi·nant, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

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British Dictionary definitions for determinant

determinant

adjective
  1. serving to determine or affect
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noun
  1. a factor, circumstance, etc, that influences or determines
  2. maths a square array of elements that represents the sum of certain products of these elements, used to solve simultaneous equations, in vector studies, etcCompare matrix (def. 9)
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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 determinant

c.1600 (adj.); 1680s (n.), from Latin determinantem (nominative determinans), present participle of determinare (see determine).

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Online Etymology Dictionary, © 2010 Douglas Harper

determinant in Medicine

determinant

(dĭ-tûrmə-nənt)
n.
  1. An influencing or determining element or factor.
  2. Antigenic determinant.
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adj.
  1. Tending or serving to determine.
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The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.