About
The character 坩 denotes a crucible, an earthen vessel designed for high-temperature processes like metal melting. It is a phono-semantic compound: the left semantic radical 土 (tǔ, earth) indicates the clay or ceramic material, while the right component 甘 (gān) provides the phonetic element. This character is most commonly found in the compound 坩埚 (gānguō), meaning crucible, and its usage is confined to specialized laboratory or metallurgical equipment.