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- n. Plural form of tetraneutron.
Sorry, no etymologies found.
They are called tetraneutrons: four neutrons that are bound together in a way that defies the laws of physics.
And there are still more compelling reasons to doubt the existence of tetraneutrons.
Not as improbable as tetraneutrons, some might say, because in the standard model of particle physics tetraneutrons simply can't exist.
Marquès and his team were so bemused by their result that they buried the data in a research paper that was ostensibly about the possibility of finding tetraneutrons in the future (