Definition of phlogistian in English:

phlogistian

noun

historical
  • A believer in the phlogistic theory of combustion.

Origin

Late 18th century; earliest use found in Humphry Davy (1778–1829), chemist and inventor. From phlogiston + -ian.

Pronunciation

phlogistian

/flə(ʊ)ˈdʒɪstɪən/