Refers to air that has had the phlogiston removed and is thought to be purer or deoxygenated as per historical scientific theories.

वह वायु जिसमें फॉलोगिस्टन हटाया गया हो।

English Usage: In the 18th century, scientists believed that dephlogisticated air was essential for combustion to occur.

Hindi Usage: 18वीं शताब्दी में, वैज्ञानिकों का मानना था कि dephlogisticated air जलन के लिए आवश्यक था।