. (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.

(Um*bil"i*cate Um*bil"i*ca`ted) a. [L. umbilicatus. See Umbilic.] (a) Depressed in the middle, like a navel, as a flower, fruit, or leaf; navel-shaped; having an umbilicus; as, an umbilicated smallpox vesicle. (b) (Bot.) Supported by a stalk at the central point.

(Um*bil"i*ca"tion) n. A slight, navel-like depression, or dimpling, of the center of a rounded body; as, the umbilication of a smallpox vesicle; also, the condition of being umbilicated.

(||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.

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.

4. (Zoöl.) (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 feather.

5. (Geom.) (a) One of 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.

Umble pie
(Um"ble pie`) A pie made of umbles. See To eat humble pie, under Humble.

(Um"bles) n. pl. [See Nombles.] The entrails and coarser parts of a deer; hence, sometimes, entrails, in general. [Written also humbles.] Johnson.

(||Um"bo) n.; pl. L. Umbones E. Umbos [L.]

1. The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike.

2. A boss, or rounded elevation, or a corresponding depression, in a palate, disk, or membrane; as, the umbo in the integument of the larvæ of echinoderms or in the tympanic membrane of the ear.

3. (Zoöl.) One of the lateral prominence just above the hinge of a bivalve shell.

(Um"bo*nate Um"bo*na`ted) a. [NL. umbonatus. See Umbo.] Having a conical or rounded projection or protuberance, like a boss.

(||Um"bra) n.; pl. Umbræ [L., a shadow.]

1. (Astron.) (a) The conical shadow projected from a planet or satellite, on the side opposite to the sun, within which a spectator could see no portion of the sun's disk; — used in contradistinction from penumbra. See Penumbra. (b) The central dark portion, or nucleus, of a sun spot. (c) The fainter part of a sun spot; — now more commonly called penumbra.

Umbilical cord

  By PanEris using Melati.

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