\Boul"tel\, Boultin \Boul"tin\, 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.]