[uhm-bil-i-kuhs, uhm-buh-lahy-kuhs]
noun, plural umbilici [uhm-bil-uh-sahy, uhm-buh-lahy-sahy] .
Anatomy. the depression in the center of the surface of the abdomen indicating the point of attachment of the umbilical cord to the embryo; navel.
Botany, Zoology. a navellike formation, as the hilum of a seed.

1605–15; < Latin umbilīcus navel, middle, center; see navel Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
umbilicus (ʌmˈbɪlɪkəs, ˌʌmbɪˈlaɪkəs)
n , pl -bilici
1.  biology a hollow or navel-like structure, such as the cavity at the base of a gastropod shell
2.  anatomy a technical name for the navel
[C18: from Latin: navel, centre; compare Latin umbō shield boss, Greek omphalos navel]

Collins English Dictionary - Complete & Unabridged 10th Edition
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American Heritage
Medical Dictionary

umbilicus um·bil·i·cus (ŭm-bĭl'ĭ-kəs, ŭm'bə-lī'kəs)
n. pl um·bil·i·ci (-sī')
See navel.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Example sentences
My data umbilicus runs up to the ceiling and across to a computer.
His umbilicus, that mute evidence of his ancestry, seems set directly upon the vertebral column.
The lowest part of the stomach is at the pyloric vestibule, which reaches to the region of the umbilicus.
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