\Mam"mil*la*ry\, a. [Cf. F. mammilaire. See
{Mammilla}.]
1. Of or pertaining to the mammilla, or nipple, or to the
   breast; resembling a mammilla; mammilloid.
2. (Min.) Composed of convex convex concretions, somewhat
   resembling the breasts in form; studded with small
   mammiform protuberances.