Definition
The ambitious (some might say hubristic) process of transforming another planet's atmosphere and environment to make it Earth-like and habitable for humans. It's planetary renovation on a cosmic scale, typically discussed by Mars enthusiasts who think centuries-long engineering projects are reasonable solutions to climate change. The ultimate real estate development project, assuming we ever figure out how to actually do it.
Example Usage
Elon wants to terraform Mars by 2050, which seems optimistic considering we can't even agree on daylight saving time here on Earth.
Source: Science fiction and aerospace terminology
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See “terraform” in Corporate Speak, Gen-Z Slang, Pirate Speak, and more.
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