Definitions from Wiktionary (homology)

▸ noun:  The relationship of being homologous; a homologous relationship.
▸ noun:  (geometry, projective geometry) specifically, such relationship in the context of the geometry of perspective.
▸ noun:  (geometry, projective geometry) An automorphism of the projective plane (representing a perspective projection) that leaves all the points of some straight line (the homology axis) fixed and maps all the lines through some single point (the homology centre) onto themselves.
▸ noun:  (topology, algebraic topology) A general way of associating a sequence of algebraic objects, such as abelian groups or modules, to a sequence of topological spaces; also used attributively: see Usage notes below.
▸ noun:  (algebra) Given a chain complex {Gₙ} and its associated set of homomorphisms {Hₙ}, the rule which explains how each Hₙ maps Gₙ into the kernel of Gₙ₊₁.
▸ noun:  (chemistry) The relationship, between elements, of being in the same group of the periodic table.
▸ noun:  (organic chemistry) The relationship, between organic compounds, of being in the same homologous series.
▸ noun:  (biology, psychology) The relationship, between characteristics or behaviours, of having a shared evolutionary or developmental origin;
▸ noun:  (genetics) The presence of the same series of bases in different but related genes.
▸ noun:  (anthropology) The relationship, between temporally separated human beliefs, practices or artefacts, of possessing shared characteristics attributed to genetic or historical links to a common ancestor.






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