gronyn elfennol

== Welsh == === Etymology === Calque of English elementary particle. === Noun === gronyn elfennol m (plural gronynnau elfennol) (particle physics) elementary particle ==== Related terms ==== gronyn isatomig (“subatomic particle”) === Mutation === === Further reading === The Language Technologies Unit of the Bedwyr Center of Bangor University (2023), “gronyn elfennol”, in Y Termiadur Addysg.