Definition of excrescence:
neoplasm, bur, extrusion, beanstalk, bulge, deformity, mar, swelling, intumescence, eyesore, boll, disfigurement, flaw, imperfection, a blot on the landscape, jut, growth, intumescency, scar, tumor, gibbosity, horror, fault, protuberance, wart, pockmark, bulb, anther, bud, lump, blight, excrescency, blade, hump, clash, aerial root, bract, puffiness, grotesque, jutting, expulsion, blow, projection, bump, gibbousness, protrusion, prominence, sight, defect, mark, monstrosity, blotch.
A much smaller wing, merely an excrescence, on the other side, seemed as if it had gone as far as it could in the direction of making a quadrangle and had then given over the task to a broad low wall.- "The Devil's Garden", W. B. Maxwell.
Only the north- west corner was a little place jutting out from the great wall, a kind of excrescence or loop, no doubt used in the old distrustful days for observation, where it was possible to sit really unseen, because between it and the house was a thick clump of daphne.- "The Enchanted April", Elizabeth von Arnim.
There was another excrescence on the walls just like it at the north- east corner, but this, though the view from it was almost more beautiful, for from it you could see the bay and the lovely mountains behind Mezzago, was exposed.- "The Enchanted April", Elizabeth von Arnim.