An organic compound made by replacing the hydrogen of an acid by an alkyl or other organic group. Many naturally occurring fats and essential oils are esters of fatty acids.
- ‘Fatty esters help replace natural esters missing from older, dryer skin types.’
- ‘Inside is a solution of an oxalate ester and a fluorescent dye, as well as a smaller glass tube that contains hydrogen peroxide.’
- ‘Glycerol esters are utilized in cakes, breads and other bakery products as lubricants and softening agents.’
- ‘Fatty acid methyl esters were analyzed by gas chromatography as described above.’
- ‘The ester ethyl acetate can be produced using either an organic or inorganic acid.’
Mid 19th century: from German, probably from a blend of Essig vinegar and Äther ether.
We take a look at several popular, though confusing, punctuation marks.