Similar in origin and structure but not necessarily in function.
Corresponding in structure, position, origin, etc., as (a) the feathers of a bird and the scales of a fish, (b) antigen and its specific antibody, (c) allelic chromosomes.
Chromosomes or chromosome segments that are identical with respect to their constituent genetic loci and their visible structure.
With a shared evolutionary origin, the structure of two things does not have to be similar in form to be homologous (e.g. the forelimbs of a horse and the wings of a bat).
Body organs in different sexed individuals that arise from the same embryological tissue.
Referring to chromosomes which form a pair.
Corresponding or similar in position, structure, function, or characteristics; derived from an organism of the same species, such as a homologous skin graft or homologous chromosomes.
Describing organs or parts that have the same basic structure and evolutionary origin, but not necessarily the same function or superficial structure.
Similar in fundamental structure and in origin but not necessarily in function (e.g., the arm of a man, forelimb of a dog, and wing of a bird).
Being of the same kind or sharing a similar structure.