projective: Analytic, this is the analytical expression of the projective Geometry.
controversy: The decision aroused much controversy among the students.
abnormality: Rachel adopted a puppy with an abnormality in his hind legs making it difficult for him to walk, but he's still very cute.
pith: The heart of a watermelon is the best part because he pith tastes the best.
(I’m not sure if this is what you meant but I hope it helps)