The mother herself—as if the red ignominy were so deeply scorched into her brain that all her conceptions assumed its form—had carefully wrought out the similitude, lavishing many hours of morbid ingenuity to create an analogy between the object of her affection and the emblem of her guilt and torture.
There are no more uses of "similitude" in the book.
Show samples from other sources
People are drawn to communities of similitude.
the dream had too much similitude of the fact
Daniel Defoe -- The Further Adventures of Robinson Crusoe