Medical Definition of gastric juice
: a thin watery acid digestive fluid secreted by the glands in the mucous membrane of the stomach and containing 0.2 to 0.4 percent free hydrochloric acid and several enzymes (as pepsin)
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Dictionary: Definition of "gastric juice" Britannica English: Translation of "gastric juice" for Arabic speakers Britannica.com: Encyclopedia article about "gastric juice"
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