Definition of petrific in US English:

petrific

adjective

rare
  • 1Having the quality of petrifying or turning into stone; causing petrifaction; (Medicine) †causing the formation of a calculus (obsolete).

  • 2Petrified, stony.

Origin

Mid 17th century; earliest use found in John Milton (1608–1674), poet and polemicist. From post-classical Latin petrificus causing petrifaction from classical Latin petra rock, stone + -ficus.

Pronunciation

petrific

/pɪˈtrɪfɪk/