Definition of pyrodin in US English:

pyrodin

(also pyrodine)

noun

Pharmacology
disused
  • A medicinal preparation containing or consisting of acetylphenylhydrazine, CH₃CO·NH·NHC₆H₅, formerly used as an antipyretic and in the treatment of polycythaemia.

Origin

Late 19th century. From ancient Greek πυρώδης like fire, fiery (from πῦρ fire + -ώδης) + -in.

Pronunciation

pyrodin

/pʌɪˈrəʊdɪn/