pentaerythritol te|tra|ni|trate

pentaerythritol te|tra|ni|trate «_TEHT ruh NY trayt»,

a white, crystalline substance derived from the esterification of pentaerythritol with nitric acid, used as an explosive and in treating certain heart disorders. Formula: C(CH₂ONO₂)₄ Abbr: PETN (no periods).