D defs.my
Entry 1 sense Webster, 1913

Ester

/ĕs'-tẽr/ · Es·ter · IPA /ˈɛstɚ/
01 n. An ethereal salt, or compound ether, consisting of an organic radical united with the residue of any oxygen acid, organic or inorganic; thu…
  1. 1.
    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.(Chem.)