noun🔗ShareDas hypothetische FeuerprinzipThe hypothetical fiery principle formerly assumed to be a necessary constituent of combustible bodies and to be given up by them in burning."Chemists once believed that wood released phlogiston into the air as it burned. "Chemiker glaubten einst, dass Holz beim Verbrennen Phlogiston in die Luft freisetzte.theorychemistrysubstancephysicsscienceenergyChat with AIVocabulary GamePractice Reading