Simple past tense and past participle of terraform.(verb)
Wiktionary.org : Text is available under the Creative Commons Attribution-ShareAlike License
Use "terraformed" in a sentence
"And I'd like to debate how Mars should be colonized - specifically, whether or not it should "terraformed" into a warm planet with a breathable atmosphere for humans."
"McGregor painted the picture of long rows of equipment racks "terraformed" with server blades, requiring switches massive enough to move all that data."
"It's about political officer and double-agent Max Nikomedes, embroiled in the battle between the departments of Political Education and Intelligence on Jerusalem, a terraformed Christian planet."