urachus

Medical Dictionary

urachus u·ra·chus (y&oobreve;r'ə-kəs)
n.
The portion of the reduced allantoic stalk between the apex of the bladder and the umbilicus.

u'ra·chal adj.

The American Heritage® Stedman's Medical Dictionary
Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.
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Urachus is always a great word to know.

So is doohickey. Does it mean:

a scrap or morsel of food left at a meal.

a gadget; dingus; thingumbob.

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