UMBILICUSES

Noun

umbilicuses

plural of umbilicus

Source: Wiktionary

UMBILICUS

Um`bi*li"cus, n. Etym: [L. See Umbilic.]

1. (Anat.)

Definition: 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.)

Definition: An ornamented or painted ball or boss fastened at each end of the stick on which manuscripts were rolled. Dr. W. Smith.

3. (Bot.)

Definition: 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.

Source: Webster’s Unabridged Dictionary 1913 Edition

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