homology

Definition from Wiktionary, a free dictionary

Wikipedia

Contents 1 English 1.1 Noun 1.1.1 Usage notes 1.1.2 Derived terms 1.1.3 Related terms 1.1.4 Translations

[edit] English

[edit] Noun

homology (plural homologies)

1. A homologous relationship
2. (biology) A correspondence of structures in two life forms with a common evolutionary origin, such as flippers and hands.
3. (chemistry) The relationship between the elements in the same group of the periodic table, or between organic compounds in a homologous series
4. (mathematics) A theory associating a system of quotient groups to each topological space
5. (mathematics) A system of quotient groups associated to a topological space
6. (genetics) The presence of the same series of bases in related genes

[edit] Usage notes

• Like many terms that start with a voiced h and have emphasis on their second syllable, some people precede homology with an, others with a.

[edit] Derived terms

• cohomology
• microhomology

[edit] Related terms

• analogy
• homologue

[edit] Translations

• Czech: homologie cs(cs) f.
• Finnish: homologia fi(fi)
• French: homologie fr(fr)
• German: Homologie