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ruga

American  
[roo-guh] / ˈru gə /

noun

plural

rugae

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

ruga British  
/ ˈruːɡə /

noun

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

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of ruga

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

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

In the absence of food, the stomach deflates inward, and its mucosa and submucosa fall into a large fold called a ruga.

From Textbooks • Jun. 19, 2013

Retirugis is from rete, a net; ruga, a wrinkle.

From The Mushroom, Edible and Otherwise Its Habitat and its Time of Growth by Hard, Miron Elisha

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.