Definitions for "Umbilicus"
Keywords:  navel, belly, cord, fetus, abdomen
The depression, or mark, in the median line of the abdomen, which indicates the point where the umbilical cord separated from the fetus; the navel; the belly button, in humans.
The point on the abdominal wall where the umbilical cord emerged.
the cord stump.
A depression or opening in the center of the base of many spiral shells.
The cavity around the axis of coiling found in loosely coiled shells
The recessed centre of the shell of an ammonite or nautilus as viewed from the side.
Keywords:  hilum
The hilum.
Keywords:  foci, ellipse, curve, one
One of the foci of an ellipse, or other curve.
A point of a surface at which the curvatures of the normal sections are all equal to each other. A sphere may be osculatory to the surface in every direction at an umbilicus. Called also umbilic.
An ornamented or painted ball or boss fastened at each end of the stick on which manuscripts were rolled.
Keywords:  calamus, apertures, feather, two, one
Either one of the two apertures in the calamus of a feather.
Umbilicus is a genus of 15-20 species of flowering plants in the family Crassulaceae.