- The absence of correspondence, or relation, in type of
structure; lack of analogy between parts, owing to their being composed
of different elements, or of like elements in different proportions;
variation in structure from the normal form; -- opposed to homology. - The connection or relation of bodies which have partial
identity of composition, but different characteristics and properties;
the relation existing between derivatives of the same substance, or of
the analogous members of different series; as, ethane, ethyl alcohol,
acetic aldehyde, and acetic acid are in heterology with each other,
though each in at the same time a member of a distinct homologous
series. Cf. Homology.
Definition
[ n.]