Having been stimulated or aroused in appetite; made hungry or desirous.
Past tense/past participle of appetize. The -ed suffix here marks the completed action of stimulating appetite, creating an adjective describing the resulting state.
When you're sitting at a fancy restaurant and the bread basket arrives, you've been 'appetized'—they successfully got you hungry before the real food comes. It's a sneaky marketing term hidden in food service!
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