The DICT Development Group
3 definitions found
From The Collaborative International Dictionary of English v.0.48 :
Umbilicus \Um`bi*li"cus\, n. [L. See Umbilic.]
1. (Anat.) 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.
2. (Gr. & Rom. Antiq.) An ornamented or painted ball or boss
fastened at each end of the stick on which manuscripts
were rolled. --Dr. W. Smith.
3. (Bot.) The hilum.
(a) A depression or opening in the center of the base of
many spiral shells.
(b) Either one of the two apertures in the calamus of a
(a) One of the foci of an ellipse, or other curve. [Obs.]
(b) 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.
From WordNet (r) 3.0 (2006) :
n 1: a scar where the umbilical cord was attached; "you were not
supposed to show your navel on television"; "they argued
whether or not Adam had a navel"; "she had a tattoo just
above her bellybutton" [syn: navel, umbilicus,
bellybutton, belly button, omphalos, omphalus]
From Moby Thesaurus II by Grady Ward, 1.0 :
24 Moby Thesaurus words for "umbilicus":
axis, center, center of action, center of gravity, centroid,
centrum, core, dead center, epicenter, heart, hub, kernel, marrow,
medulla, metacenter, middle, nave, navel, nub, nucleus, omphalos,
pith, pivot, storm center
Questions or comments about this site?