New HDSF entries! "Rhean", as noun and adjective, in reference to the Saturnian moon Rhea. Now largely obsolete. The various solar-system-moon terms were popular mid-century, but we don't talk about them much anymore.
https://sfdictionary.com/view/2761/rhean
https://sfdictionary.com/view/2893/rhean
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@jessesheidlower With the popularity of _The Martian_ and _The Expanse_, I wonder if we're due for a resurgence of SF set in the Solar System. If so, I'd expect words relating to the gas giant moons to make a resurgence, since the moons themselves are such obvious candidates for human habitation.
@medigoth
I've been wondering about this. My assumption is that, after the mid-century interest, we figured that if we're making shit up, there's no need to limit things to our own solar system, hence the falloff in these terms. But since we don't appear to be getting much closer to FTL travel, maybe we will start to pay attention to our local moons again.