N a dock, Rumex hymenosepalus, of the southern US, the root of which yields a substance used in tanning 膜萼酸模
Canaigre Dock膜萼酸模
canaigre ink消迹墨
N（名词） a dock, Rumex hymenosepalus, of the southern US, the root of which yields a substance used in tanning 膜萼酸模