Definition of phthalide in English:

phthalide

noun

Chemistry
  • †(a) Phthalic anhydride. Obsolete. (b) A lactone, C₆H₄(CH₂)(CO)O, obtainable by the reduction of phthalic anhydride.

Origin

Mid 19th century; earliest use found in Henry Watts (1815–1884), chemist. From phthal- + -ide. Compare French phtalide.

Pronunciation

phthalide

/ˈ(f)θeɪlʌɪd//ˈ(f)θalʌɪd/