homology
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ho·mol·o·gy
(hə-mŏl′ə-jē, hō-)n. pl. ho·mol·o·gies
1. The quality or condition of being homologous.
2. A homologous relationship or correspondence.
3. Chemistry
a. The relation of the elements of a periodic family or group.
b. The relation of the organic compounds forming a homologous series.
4. Mathematics A topological classification of configurations into distinct types that imposes an algebraic structure or hierarchy on families of geometric figures.
[Greek homologiā, agreement, from homologos, agreeing; see homologous.]
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.
homology
(həʊˈmɒlədʒɪ)n, pl -gies
1. the condition of being homologous
2. (Chemistry) chem the similarities in chemical behaviour shown by members of a homologous series
3. (Zoology) zoology the measurable likenesses between animals, as used in grouping them according to the theory of cladistics
[C17: from Greek homologia agreement, from homologos agreeing; see homologate]
Collins English Dictionary – Complete and Unabridged, 12th Edition 2014 © HarperCollins Publishers 1991, 1994, 1998, 2000, 2003, 2006, 2007, 2009, 2011, 2014
ho•mol•o•gy
(həˈmɒl ə dʒi, hoʊ-)n., pl. -gies.
1. the state of being homologous.
2. Biol.
a. a fundamental similarity based on common descent.
b. a structural similarity of two segments of one animal based on a common developmental origin.
3. the similarity of organic compounds of a series in which each member differs from successive compounds by a fixed increment, as by CH2.
4. a classification of mathematical figures according to certain topological properties.
[1650–60; < Greek homología agreement, derivative of homólog(os) homologous]
Random House Kernerman Webster's College Dictionary, © 2010 K Dictionaries Ltd. Copyright 2005, 1997, 1991 by Random House, Inc. All rights reserved.
homology
1. similarity of form or structure in two or more organisms owing to common descent.
2. similarity in form or structure between different parts of an organism owing to common origin. Cf. homodynamy. — homologous, adj.
See also: Biology2. similarity in form or structure between different parts of an organism owing to common origin. Cf. homodynamy. — homologous, adj.
-Ologies & -Isms. Copyright 2008 The Gale Group, Inc. All rights reserved.
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| Noun | 1. | homology - the quality of being similar or corresponding in position or value or structure or function similarity - the quality of being similar |
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