noun, plural homologies.
the state of being homologous; homologous relation or correspondence.
2. Biology. a.
a fundamental similarity based on common descent
a structural similarity of two segments of one animal based on a common developmental origin.
the similarity of organic compounds of a series in which
each member differs from its adjacent compounds by a fixed increment, as by CH 2
Mathematics. a classification of figures according to certain topological properties.
< Greek homología
agreement, equivalent to homólog
+ -ia -y3