About
The character 铥 (diū) is a modern addition to the Chinese lexicon, coined for the chemical element thulium, a rare earth metal with atomic number sixty-nine. It is a phono-semantic compound following the standard conventions of chemical nomenclature: the semantic radical 钅 (jīn), meaning 'gold' or 'metal', on the left classifies it as a metallic substance, while the phonetic component 丢 (diū) on the right gives the pronunciation, approximating the first syllable of the element's Latin or English name. The traditional form is 銩, with the full metal radical 金. This character's meaning is singular and entirely chemical, illustrating how the script systematically incorporates modern scientific discoveries.
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