(ak - on' - it - in), C 33 H 45 N0 12 , aconiiina (U. S. P.). An intensely poisonous alkaloid from Aconitum napellus and other species; it occurs as white, flat crystals of slightly bitter taste. Dose ^aX6g, the navel], i. The center of the umbilicus, to which the cord is attached.
2. The first stage of umbilical hernia, marked by a pouting of the navel. 3. The remains of the umbilical cord attached to the child.