Simple past tense and past participle of degas.(verb)
From which the gas has been removed(adjective)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "degassed" in a sentence
"Obsidian forms when lava cools quickly or is degassed in other ways."
"There's 5,400 cubic kilometers of water into the lake, and it would just keep blasting out until it degassed."
"Building on Nucor Steel Berkeley's success with selling value-added vacuum degassed steel, we will be installing a second sheet mill vacuum degasser at our Hickman, Arkansas facility."