(from the article `chemical compound`) ...catalyst promotes the replacement of an OH group by an OR group (from a second molecule of alcohol) to give the stable acetals. (If the starting ...
RC(OR')(R')OR'';a hydrated ketone in which both hydroxyl groups are esterified with alcohols. ... (05 Mar 2000) ... 
Type: Term Pronunciation: kē′tăl Definitions: 1. a hydrated ketone in which both hydroxyl groups are esterified with alcohols.