from The American Heritage® Dictionary of the English Language, 4th Edition
- n. The quality or condition of being homologous.
- n. A homologous relationship or correspondence.
- n. Chemistry The relation of the elements of a periodic family or group.
- n. Chemistry The relation of the organic compounds forming a homologous series.
- n. Mathematics A topological classification of configurations into distinct types that imposes an algebraic structure or hierarchy on families of geometric figures.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. A homologous relationship.
- n. A correspondence of structures in two life forms with a common evolutionary origin, such as flippers and hands.
- n. The relationship between the elements in the same group of the periodic table, or between organic compounds in a homologous series.
- n. A theory associating a system of quotient groups to each topological space.
- n. A system of quotient groups associated to a topological space.
- n. The presence of the same series of bases in related genes.
from the GNU version of the Collaborative International Dictionary of English
- n. The quality of being homologous; correspondence; relation.
- n. Correspondence or relation in type of structure in contradistinction to similarity of function; as, the relation in structure between the leg and arm of a man; or that between the arm of a man, the fore leg of a horse, the wing of a bird, and the fin of a fish, all these organs being modifications of one type of structure.
- n. The correspondence or resemblance of substances belonging to the same type or series; a similarity of composition varying by a small, regular difference, and usually attended by a regular variation in physical properties; , all members of the paraffin series. In an extended sense, the term is applied to the relation between chemical elements of the same group. Cf. Heterology.
from The Century Dictionary and Cyclopedia
- n. The state or character of being homologous; correspondence.
- n. In geometry, the relation between two corresponding figures lying in the same plane which are such that corresponding points are collinear With a fixed point called the center of homology, while corresponding lines intersect on a fixed line called the axis of homology.
- n. In chem., the relationship which the members of a homologous series bear to one another.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. the quality of being similar or corresponding in position or value or structure or function
Greek homologiā, agreement, from homologos, agreeing; see homologous.(American Heritage® Dictionary of the English Language, Fourth Edition)