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Definition

noun, plural: homologies

(1) A degree of similarity, as in position or structure, and that may indicate a common origin; a correspondence of structure

(2) (evolutionary biology) A state of similarity in structure and anatomical position but not necessarily in function between different organisms indicating a common ancestry or evolutionary origin

(3) (genetics) A condition denoting to the pair of chromosomes having corresponding genes for a particular trait or characteristic

Supplement

Word origin: Greek homologia agreement, from homologos agreeing

Compare:

• Analogy

Related term(s):

• homologous
• Sequence homology