collapsium
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English[edit]
Etymology[edit]
From collapse + -ium. Probably alluding to black holes, which are extremely dense objects formed by collapsing matter in the core of a dying star.
Noun[edit]
collapsium (uncountable)
- (science fiction) A fictional material usually described as having an extremely high density.
References[edit]
- Jesse Sheidlower, editor (2001–2024), “collapsium, n.”, in Historical Dictionary of Science Fiction.