Meaning & use
ruga
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An anatomical fold, wrinkle, or crease, especially one lining an internal organ such as the stomach.
See it in a sentence
The rugae of the stomach lining allow it to expand as it fills with food.
Under endoscopy, the doctor examined the folds, or rugae, of the patient's gastric wall.
A note on using this word
From Latin ruga, meaning wrinkle; the plural form rugae is far more commonly used in medical texts than the singular.
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