Meanings
- uncountablenatural sciencesA radioactive isotope of uranium, 23392U, having a half-life of about 160,000 years; it is fissile.
1 more example
"The guy that just left—what's he got in his lungs?" / "Well, I'm not very sure. But the two best candidates are uranium-233 and plutonium-239, one or both." / "They're in his bones too, aren't they?" / "Yeah, they're both boneseekers. And they've got half-lives of one hundred sixty-two thousand and twenty-four thousand years respectively. So they stay hot for a long time."
1985, Michael Swanwick, “Boneseeker”, in In the Drift (Ace Science Fiction Specials; series 3), New York, N.Y.: Ace Science Fiction Books, →ISBN; republished New York, N.Y.: Dover Publications, 2017, →ISBN, page 80
Cite this entry
uranium-233. (n.d.). In WatkinsX Dictionary. Retrieved November 2, 2026, from https://dictionary.watkinsx.com/word/uranium-233
“uranium-233.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/uranium-233. Accessed November 2, 2026.
WatkinsX Dictionary, s.v. “uranium-233,” accessed November 2, 2026, https://dictionary.watkinsx.com/word/uranium-233.
Source: uranium-233 on Wiktionary, CC BY-SA 4.0.