having the same relative position, proportion, value, or structure.-corresponding in relative position and proportion.-having the same relative proportion or value, as the two antecedents or the two consequents of a proportion.-characterized by homology; belonging to the same type or series; corresponding in composition and properties. see homology, 3.-being of the same typical structure; having like relations to a fundamental type to structure; as, those bones in the hand of man and the fore foot of a horse are homologous that correspond in their structural relations, that is, in their relations to the type structure of the fore limb in vertebrates.