Definitions

ruǎn protein

Etymology phono-semantic

meat

Semantic: Phonetic:

About

Originally an obscure term for human flesh or a bodily state, (ruǎn) has been specifically repurposed in modern scientific Chinese to denote a prion, an infectious protein particle. Structurally, it is a phono-semantic compound: the flesh radical (derived from , "meat") on the left indicates an organic substance, while (yuán) on the right provides the sound. This reuse of a dormant character allowed scientists to translate the microbiological term into Chinese, showing how specialized vocabulary systematically repurposes obsolete graphs to name newly discovered biological entities.