S: (n) umbo (a slight rounded elevation where the malleus attaches to the eardrum)
S: (n) camber (a slight convexity (as of the surface of a road))
S: (n) entasis (a slight convexity in the shaft of a column; compensates for the illusion of concavity that viewers experience when the sides are perfectly straight)
S: (n) point, tip, peak (a V shape) "the cannibal's teeth were filed to sharp points"
S: (n) taper (a convex shape that narrows toward a point)
S: (n) projection (any solid convex shape that juts out from something)
S: (n) projection ((psychiatry) a defense mechanism by which your own traits and emotions are attributed to someone else)
S: (n) projection, acoustic projection, sound projection (the acoustic phenomenon that gives sound a penetrating quality) "our ukuleles have been designed to have superior sound and projection"; "a prime ingredient of public speaking is projection of the voice"