cudbear
/kuhd-bair/US // ˈkʌdˌbɛər //UK // (ˈkʌdˌbɛə) //
灰熊,泥菩萨过江自身难保,泥菩萨心肠
Definitions
n.名词 noun
- 1
- : a violet coloring matter obtained from various lichens, especially Lecanora tartarea.
Examples
A mordant of alum, followed by a hot bath of brazil wood, and afterwards by a weak one of cudbear.
The above deep red feathers are passed through a bath of cudbear.
Instead of logwood a little madder is sometimes used; also Cudbear or Barwood.
The manufacture of Archil and Cudbear from the various lichens is simple in principle.
The lichens thus treated acquire gradually a deep purple colour, and form the products called "cudbear."
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