%boultin%

{ } n. (Arch.) (a) A molding, the convexity of which is one fourth of a circle, being a member just below the abacus in the Tuscan and Roman Doric capital; a torus; an ovolo. (b) One of the shafts of a clustered column. [ Written also bowtel, boltel, boultell, etc. ] [ 1913 Webster ]