قاموس اللغة الإنجليزية

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.

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.

An ornamented or painted ball or boss fastened at each end of the stick on which manuscripts were rolled.

The hilum.

A depression or opening in the center of the base of many spiral shells.

Either one of the two apertures in the calamus of a feather.

One of 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.

A pie made of umbles. See To eat humble pie, under Humble.

The entrails and coarser parts of a deer; hence, sometimes, entrails, in general.

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

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

One of the lateral prominence just above the hinge of a bivalve shell.

Alt. of Umbonated

Having a conical or rounded projection or protuberance, like a boss.

of Umbo

of Umbo

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.

The central dark portion, or nucleus, of a sun spot.

The fainter part of a sun spot; -- now more commonly called penumbra.