Definition of Homologous

1. Adjective. Having the same evolutionary origin but not necessarily the same function. "The wing of a bat and the arm of a man are homologous"

Category relationships: Biological Science, Biology
Similar to: Homologic, Homological
Antonyms: Analogous, Heterologous

2. Adjective. Corresponding or similar in position or structure or function or characteristics; especially derived from an organism of the same species. "A homologous tissue graft"
Antonyms: Autologous, Heterologous
Derivative terms: Homology

Definition of Homologous

1. a. Having the same relative position, proportion, value, or structure.

Definition of Homologous

1. Adjective. Showing a degree of correspondence or similarity. ¹

¹ Source:

Definition of Homologous

1. [adj]

Medical Definition of Homologous

1. Corresponding in structure, position, origin, etc., such as the feathers of a bird and the scales of a fish, the antigen and its specific antibody, the allelic chromosomes. Compare: analogous. Origin: Gr. Homologos = agreeing, correspondent This entry appears with permission from the Dictionary of Cell and Molecular Biology (11 Mar 2008)

Lexicographical Neighbors of Homologous

homologous (current term)
homologous antigen
homologous antiserum
homologous chromosome
homologous chromosomes
homologous desensitization
homologous graft
homologous pair
homologous pairs
homologous proteins
homologous recombination
homologous series
homologous serotype
homologous serum jaundice
homologous stimulus

Literary usage of Homologous

Below you will find example usage of this term as found in modern and/or classical literature:

1. The Variation of Animals and Plants Under Domestication by Charles Darwin (1899)
"The Fusion of homologous Parts.—Geoffrey Saint-Hilaire formerly propounded ... This law seems to imply that homologous parts actually attract one another ..."

2. Theoretical Kinematics by Oene Bottema, Bernard Roth (1990)
"Hence the set of lines on which three homologous points of V lie is the curve ... The complete locus of lines through three homologous points consists of F ..."

3. Report (1905)
"In each case the mean coefficient for the non-homologous joints is smaller than that for the homologous. In the case of the Legs I-II and Legs II-III the ..."

4. Report of the Annual Meeting (1877)
"0), and if the velocities of the bodies at homologous points in their ... For brevity in what follows, pressures at homologous places on homologous areas ..."

5. A Text-book of Organic Chemistry by Arnold Frederik Holleman (1920)
"33] homologous SERIES. found In the oldest geological formations, but only in those in which the presence of vegetable and animal remains has been ..."

6. Collected Papers in Physics and Engineering by James Thomson (1912)
"square root of any homologous linear dimension in the different flows: and also (pressures being reckoned from the atmospheric pressure as zero) the ..."

7. Inorganic chemistry by Ira Remsen (1889)
"Homology, homologous Series.—In the above series the first member diners from the second by CH, ; and there is also this same difl'erence between the second ..."

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