Organic compound formed by reaction between an acid and an alcohol with elimination of water
Open English WordNet
An ester is a chemical compound derived from an acid in which at least one –OH hydroxyl group is replaced by an –O– alkyl group, as in the substitution reaction of a carboxylic acid and an alcohol.
Chemical compounds consisting of a carbonyl adjacent to an ether linkage
An organic compound formed by a reaction of a carboxylic acid and an alcohol.
A compound most often formed by the condensation of an alcohol and an acid, with elimination of water, which contains the functional group carbon-oxygen double bond joined via carbon to another oxygen atom.