About
The character 鈆 is a historical variant of 鉛, which means the metal lead. It is a phono-semantic compound: the left radical 金 provides the semantic category of metal, while the right component 公 functions as the phonetic element, indicating the historical pronunciation 'yán'. The existence of this variant, which uses a different phonetic element than the standard character, reflects the diverse phonetic borrowing practices in Chinese metallurgical vocabulary before orthographic standards were fully established.