acetose ace·tose UK/ˈæs.ɪ.təʊs/ US/ˈæs.ɪ.toʊs/ uncommon adjective 1. tasting like vinegar Synonymsacetousvinegary Similarsour WordNet 2.1 (Princeton University). Wiktionary (CC BY-SA). CMU Pronouncing Dictionary. WordNet 2.1 Copyright Princeton University. All rights reserved.