dragon's fang
Refers to the fang of a dragon, often in mythological or fantasy contexts.
The legendary sword is said to have been made from a dragon's fang.
Variant using 龍 (dragon); less common but still encountered.
Compound of 牙 (ga, 'fang') and 竜/龍 (ryū, 'dragon'). The exact historical derivation is uncertain; the spelling is conventionally associated with the meaning.