(chemistry, obsolete) The process of dephlogisticating; removal of the phlogiston, or supposed ability to burn.

plural of dephlogistication

To take away the phlogiston, i.e. ability to burn, which is now understood to be chemically impossible

Third-person singular simple present indicative form of dephlogisticate

simple past tense and past participle of dephlogisticate

(obsolete, chemistry) From which the phlogiston has been removed

present participle of dephlogisticate

(chemistry, historical) Oxygen gas, as originally thought to be air deprived of phlogiston (“the hypothetical fiery principle formerly assumed to be a necessary constituent of combustible bodies and to be given up by them in burning”).