stomach, paunch, crop, craw
胃 centers on the internal organ that receives and processes food: the stomach. Extended uses like paunch, crop, or craw are specific anatomical or culinary applications of the same digestive pouch idea.
胃 combines 田 (a pictograph of a stomach or food container) with 月 (flesh/body part), indicating a fleshy internal organ related to digestion.
The top 田 looks like a container or pouch, and the bottom 月 (flesh) marks it as a body part. Picture a fleshy pouch in your abdomen that holds food: that's your stomach.
For イ, imagine your stomach making an 'ee' sound when it's upset: 'ee' -> イ, like a queasy stomach groaning.
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stomach
stomach and intestines; gastrointestinal tract; digestive organs
stomach
stomach acid; gastric acid
stomach cancer
stomach-ache; stomach pain; gastralgia
gastric juice
stomach ulcer; gastric ulcer
stomach medicine
gastritis; gastric catarrh
stomach medicine
stomach lining; gastric wall
gastroptosis
abomasum
erosive gastritis
strengthening the stomach; strong stomach
stomachic; stomach medicine
stomachic; stomach medicine
stomach tablet
forestomach; anterior stomach; proventriculus