Ester vs. Phosphodiester

Ester and Phosphodiester Definitions
Ester
Any of a class of compounds derived from an oxyacid, usually resulting from the reaction of an oxyacid and an alcohol with the elimination of water.
Phosphodiester
(biochemistry) any of many biologically active compounds in which two alcohols form ester bonds with phosphate
Ester
(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 (i.e., carbonyl) joined via carbon to another oxygen atom.
Phosphodiester
(biochemistry) any phospholipid, such as lecithin, that has two ester groups
Ester
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.
Ester
Formed by reaction between an acid and an alcohol with elimination of water
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