Ester vs. Phosphodiester

Esternoun

(organic compound) 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.

Esternoun

An ethereal salt, or compound ether, consisting of an organic radical united with the residue of any oxygen acid, organic or inorganic; thus the natural fats are esters of glycerin and the fatty acids, oleic, etc.

Esternoun

formed by reaction between an acid and an alcohol with elimination of water

Ester

An ester is a chemical compound derived from an acid (organic or inorganic) in which at least one –OH hydroxyl group is replaced by an –O– alkyl (alkoxy) group, as in the substitution reaction of a carboxylic acid and an alcohol. Glycerides are fatty acid esters of glycerol; they are important in biology, being one of the main classes of lipids and comprising the bulk of animal fats and vegetable oils.

Phosphodiesternoun

(biochemistry) any of many biologically active compounds in which two alcohols form ester bonds with phosphate

Phosphodiesternoun

(biochemistry) any phospholipid, such as lecithin, that has two ester groups