phthalide Meaning, Definition & Usage
Phthal"ide noun
Etymology
Definitions
(Chem.) A lactone obtained by reduction of phthalyl chloride, as a white crystalline substance; hence, by extension, any one of the series of which phthalide proper is the type. Written also phthalid .phthalic anhydride? would be classed as an acid anhydride, rather than a lactone. Obtained commercially by a different process.