Homologue vs. Homologous — What's the Difference?

Variant of homolog.

Corresponding or similar in position, value, structure, or function.

Something homologous; a homologous organ or part, chemical compound, chromosome, gene, or cultural element.

Derived from the same species

(linguistics) A phoneme, morpheme, or word shared by two languages or dialects, via cognation or naturalize.

(Biology) Similar in structure and evolutionary origin, though not necessarily in function, as the flippers of a seal and the hands of a human.

One of a group of similar DNA sequences that share a common ancestry, or the peptides or proteins that they encode; the counterpart gene or protein in another taxon evolved from a common ancestor (molecularly it may be either identical or similar).

(Immunology) Relating to the correspondence between an antigen and the antibody produced in response to it.

(organic chemistry) A member of a homologous series.

Relating to chromosomes that have the same morphology and linear sequence of gene loci.

(cultural anthropology) A belief, practice, concept, or artifact that has a counterpart in another culture.

Relating to genes that are derived from a common ancestor.

That which is homologous to something else; as, the corresponding sides, etc., of similar polygons are the homologues of each other; the members or terms of an homologous series in chemistry are the homologues of each other; one of the bones in the hand of man is the homologue of that in the paddle of a whale.

(Chemistry) Belonging to or being a series of organic compounds, each successive member of which differs from the preceding member by a constant increment, especially by an added CH2 group.

Showing a degree of correspondence or similarity.

(mathematics) In corresponding proportion.

(biology) Corresponding to a similar structure in another life form with a common evolutionary origin.

(chemistry) Belonging to a series of aliphatic organic compounds that differ only by the addition of a CH₂ group.

(genetics) Having the same morphology as another chromosome or locus; relating to a homologue.

Playing the same role as seen in another culture, whether by historical connection, psychological archetype, convergent cultural evolution, or otherwise (as may be hypothesized but not known with certainty by current science), as for example with the cryptozoologic concepts of yeti and sasquatch, the use of polite and familiar pronouns, or other similarities.

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

Having the same relative proportion or value, as the two antecedents or the two consequents of a proportion.

Having the same evolutionary origin but serving different functions;

Corresponding or similar in position or structure or function or characteristics; especially derived from an organism of the same species;