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Related to deuteragonist: deuteranopia
The character second in importance to the protagonist in classical Greek drama. See Usage Note at protagonist.
[Greek deuteragōnistēs, second actor, an actor taking the secondary role (as opposed to the main role) : deuteros, second; see deu- in Indo-European roots + agōnistēs, actor; see protagonist.]
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.
(Theatre) (in ancient Greek drama) the character next in importance to the protagonist, esp the antagonist
[C19: from Greek deuteragōnistēs, from deutero- + agōnistēs contestant, actor]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
deu•ter•ag•o•nist(ˌdu təˈræg ə nɪst, ˌdyu-)
(in ancient Greek drama) the actor next in importance to the protagonist.
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
Greek Drama, the role that is second in importance to that of the protagonist, or main character.See also: Drama
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.