Plural of enteron; hypothetical fundamental particles or units proposed in early atomic and particle physics theories.
From Greek 'enteron' (intestine), though in physics it was chosen as a technical term for proposed subatomic particles; the original intestinal meaning was repurposed for scientific nomenclature in early 20th-century physics.
Scientists sometimes borrowed words from anatomy to name invisible particles they couldn't see—'enteron' was one such physics term that didn't survive, reminding us that even physicists' brilliant ideas can become forgotten scientific curiosities.
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