homomorphism(n = noun.attribute) homomorphy - similarity of form;
is a kind of similarity

1.  Same as Homomorphy. [1913 Webster]

2.  The possession, in one species of plants, of only one kind of flowers; -- opposed to heteromorphism, dimorphism, and trimorphism. [1913 Webster]

3.  The possession of but one kind of larvæ or young, as in most insects.