gastrinoma gas·tri·no·ma (gās’trə-nō’mə)
n. pl. gas·tri·no·mas or gas·tri·no·ma·ta (-mə-tə)
A gastrin-secreting tumor associated with Zollinger-Ellison syndrome.


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    1. a combining form meaning “stomach,” used in the formation of compound words: gastrology. combining form 1. stomach: gastroenteritis, gastritis scientific word-forming element meaning “stomach,” before vowels gastr-, from Greek gastro-, comb. form of gaster (genitive gastros) “belly, paunch” (see gastric). gastro- or gastr- pref. Stomach; gastric: gastritis.

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