ruga

ruga

[roo-guh]
noun, plural rugae [roo-jee, -gee] .
Usually, rugae. Biology, Anatomy. a wrinkle, fold, or ridge.

Origin:
1765–75; < Latin rūga

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World English Dictionary
ruga (ˈruːɡə)
 
n , pl -gae
(usually plural) anatomy a fold, wrinkle, or crease
 
[C18: Latin]

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

ruga ru·ga (rōō'gə)
n. pl. ru·gae (-gē', -gī')
A fold, crease, or wrinkle, as in the lining of the stomach. Often used in the plural.


ru'gate' (-gāt') adj.
The American Heritage® Stedman's Medical Dictionary
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