dephlogisticated

dephlogisticated is the simple past and past participle of dephlogisticate.

Meaning of dephlogisticate

dephlogisticate (third-person singular simple present dephlogisticates, present participle dephlogisticating, simple past and past participle dephlogisticated)

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

dephlogisticated (comparative more dephlogisticated, superlative most dephlogisticated)

(obsolete) From which the phlogiston has been removed
- A late bloomer in the journals compared to his peers, he didn’t even submit his first paper for publication until age thirty-five, chronicling his discovery of an unstable gas he called “inflammable air”—the element now known as hydrogen, the basic building block of the universe. He then determined...2015, Steve Silberman, chapter 1, in Megan Newman, editor, NeuroTribes: The Legacy of Autism and the Future of Neurodiversity, New York: Avery, →ISBN, page 22

comparative	more dephlogisticated
superlative	most dephlogisticated

What does dephlogisticated mean?: Dephlogisticated means from which the phlogiston has been removed.
What is dephlogisticated the simple past and past participle of?: Dephlogisticated is the simple past and past participle of dephlogisticate.
What part of speech is dephlogisticated?: Dephlogisticated is an adjective.

Adapted from Wiktionary: dephlogisticated (page history and authors); dephlogisticate (page history and authors). Text available under the Creative Commons Attribution-ShareAlike 4.0 license. Word.ws reformatted the entry and added links. Wiktionary data of 2026-09-02.

Last updated: 2026-09-02

Pronunciation audio from Wikimedia Commons, each file under its own free license: En-us-dephlogisticated.oga.

Cite this entry: “dephlogisticated.” Word.ws, https://word.ws/dephlogisticated. Based on Wiktionary, CC BY-SA 4.0.