ruga

American  

[roo-guh] / ˈru gə /

noun

plural

rugae

1. Biology, Anatomy. Usually rugae. a wrinkle, fold, or ridge.

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ruga British  

/ ˈruːɡə /

noun

1. (usually plural) anatomy a fold, wrinkle, or crease

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Etymology

Origin of ruga

First recorded in 1765–75, ruga is from the Latin word rūga

Example Sentences

When polio vaccination workers do visit their remote settlements, she says, they tend to visit only the first ruga they see and not look for others in the vicinity.

From Nature

Once the liquid was in her mouth, they saw that it was held in ridges called rugae on the roof of the mouth before it continued down her throat.

From New York Times

On the summits of the rugae there are effusions of bloody matter, or spots of ecchymosis, presenting an appearance almost like crushed black currants.

From Project Gutenberg

The mucous membrane loses its rugae and presents a pale, grayish, blanched hue.

From Project Gutenberg

Finally, they spot a cluster of mud-brick huts, known to the Fulani nomads who live there as a ruga.

From Nature