Definition: (adjective) Capable of being shaped or bent or drawn out.
Synonyms: tractile, ductile, pliant, tensile.
Usage: I am not very handy with a chisel, so when I sculpt, I prefer to use malleable materials that I can bend and shape as I please.
Definition: (noun) Something that bulges out or is protuberant or projects from its surroundings.
Synonyms: extrusion, gibbosity, hump, jut, bulge, protrusion, protuberance, swelling, bump, prominence.
Usage: A roof, Richard contended, was a part of the edifice that the ancients always endeavored to conceal, it being an excrescence in architecture that was only to be tolerated on account of its usefulness.