UK:*UK and possibly other pronunciationsUK and possibly other pronunciations/ˈæsɪtəs/, /æˈsiːtəs/US:USA pronunciation: respellingUSA pronunciation: respelling(asi təs, ə sē-)

WordReference Random House Unabridged Dictionary of American English © 2020
ac•e•tous  (asi təs, ə sē-),USA pronunciation adj. 
  1. containing or producing acetic acid.
  2. sour; producing or resembling vinegar;
Also,  ac•e•tose  (asi təs, ə sē-),USA pronunciation 
  • Late Latin acetōsus. See acetum, -ous
  • 1770–80

Collins Concise English Dictionary © HarperCollins Publishers::
acetous /ˈæsɪtəs əˈsiː-/, acetose /ˈæsɪˌtəʊs -ˌtəʊz/ adj
  1. containing, producing, or resembling acetic acid or vinegar
  2. tasting like vinegar
Etymology: 18th Century: from Late Latin acētōsus vinegary, from acētum vinegar
'acetous' also found in these entries:

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