\Um*bil"ic*al\, a. [Cf. F. ombilical. See {Umbilic},
n.]
1. (Anat.) Of or pertaining to an umbilicus, or umbilical
   cord; umbilic.
2. Pertaining to the center; central. [R.] --De Foe.
{Umbilical cord}.
   (a) (Anat.) The cord which connects the fetus with the
       placenta, and contains the arteries and the vein
       through which blood circulates between the fetus and
       the placenta; the navel-string.
   (b) (Bot.) The little stem by which the seeds are attached
       to the placenta; -- called also {funicular cord}.
{Umbilical hernia} (Med.), hernia of the bowels at the
   umbilicus.
{Umbilical point} (Geom.), an umbilicus. See {Umbilicus}, 5.
{Umbilical region} (Anat.), the middle region of the abdomen,
   bounded above by the epigastric region, below by the
   hypogastric region, and on the sides by the lumbar
   regions.
{Umbilical vesicle} (Anat.), a saccular appendage of the
   developing embryo, containing the nutritive and
   unsegmented part of the ovum; the yolk sac. See Illust. in
   Appendix.