Umbilicus :: Umbilicus (n.) A depression or opening in the center of the base of many spiral shells.

Umbilicus :: Umbilicus (n.) Either one of the two apertures in the calamus of a feather.

Umbilicus :: Umbilicus (n.) One of foci of an ellipse, or other curve..

Umbilicus :: Umbilicus (n.) 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 :: Umble pie () A pie made of umbles. See To eat humble pie, under Humble..

Umbles :: Umbles (n. pl.) The entrails and coarser parts of a deer; hence, sometimes, entrails, in general..

Umbo :: Umbo (n.) The boss of a shield, at or near the middle, and usually projecting, sometimes in a sharp spike..

Umbo :: Umbo (n.) 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..

Umbo :: Umbo (n.) One of the lateral prominence just above the hinge of a bivalve shell.

Umbonate :: Umbonate (a.) Alt. of Umbonate.

Umbonated :: Umbonated (a.) Having a conical or rounded projection or protuberance, like a boss..

Umbones :: Umbones (pl. ) of Umb.

Umbos :: Umbos (pl. ) of Umb.

Umbra :: Umbra (n.) 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..

Umbra :: Umbra (n.) The central dark portion, or nucleus, of a sun spot..

Umbra :: Umbra (n.) The fainter part of a sun spot; -- now more commonly called penumbra.

Umbra :: Umbra (n.) Any one of several species of sciaenoid food fishes of the genus Umbrina, especially the Mediterranean species (U. cirrhosa), which is highly esteemed as a market fish; -- called also ombre, and umbrine..

Umbraculiferous :: Umbraculiferous (a.) Bearing something like an open umbrella.

Umbraculiform :: Umbraculiform (a.) Having the form of anything that serves to shade, as a tree top, an umbrella, and the like; specifically (Bot.), having the form of an umbrella; umbrella-shaped..

Umbrae :: Umbrae (pl. ) of Umbr.

Umbrage :: Umbrage (n.) Shade; shadow; obscurity; hence, that which affords a shade, as a screen of trees or foliage..

Umbrage :: Umbrage (n.) Shadowy resemblance; shadow.

Umbrage :: Umbrage (n.) The feeling of being overshadowed; jealousy of another, as standing in one's light or way; hence, suspicion of injury or wrong; offense; resentment..

Umbrageous :: Umbrageous (a.) Forming or affording a shade; shady; shaded; as, umbrageous trees or foliage..

Umbrageous :: Umbrageous (a.) Not easily perceived, as if from being darkened or shaded; obscure..

Umbrageous :: Umbrageous (a.) Feeling jealousy or umbrage; taking, or disposed to take, umbrage; suspicious..

Umbrate :: Umbrate (v. t.) To shade; to shadow; to foreshadow.

Umbratic :: Umbratic (a.) Alt. of Umbratica.

Umbratical :: Umbratical (a.) Of or pertaining to the shade or darkness; shadowy; unreal; secluded; retired.

Umbratile :: Umbratile (a.) Umbratic.

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