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The Collaborative International Dictionary
hyperon

hyperon \hyperon\ n. (Physics) Any baryon that is not a nucleon; it is an unstable particle with a mass greater than that of a neutron.

Wiktionary
hyperon

n. (context physics English) Any baryon with a non-zero strangeness (i.e., whose composition includes one or more strange quark or anti-strange quarks).

WordNet
hyperon

n. any baryon that is not a nucleon; unstable particle with mass greater than a neutron

Wikipedia
Hyperon

In particle physics, a hyperon is any baryon containing one or more strange quarks, but no charm, bottom, or top quark.

Usage examples of "hyperon".

But as far back as 1950, hyperons had been discovered, elementary particles bigger than protons and neutrons.

Or will weall squeezed down to hyperons at leasttunnel out into a new and different universe?

The hyperons could combine into stable islands of dense material—Corestuff bergs—which could persist away from the formative densities of the heart of the Star.

Corestuff lends itself to this property, being composed of hyperons, bags of quarks in which are dissolved the orderly nucleons—the protons and neutrons—of the human world.

The core of an exploded giant sun, a mass almost half again Sol's, jammed down by its own gravity till it's that small, that dense, no longer atoms but sheer neutrons, except that at the center the density may go so high that neutrons themselves fuse into something else, hyperons, about which we know little and I lust to know more.