aceto-

American  

1. a combining form with the meanings “vinegar,” “acetic acid,” used in the formation of compound words (acetometer ), especially in the names of chemical compounds in which acetic acid or the acetyl group is present (acetophenetidin ).

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aceto- British  

combining form

1. containing an acetyl group or derived from acetic acid

   acetone

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Etymology

Origin of aceto-

< Latin acēt ( um ) vinegar + -o-. Cf. acid, acescent