from the GNU version of the Collaborative International Dictionary of English.
- noun (Zoöl.) A kind of gall produced by a gallfly on the cup of an acorn, -- used in tanning and dyeing.
from Wiktionary, Creative Commons Attribution/Share-Alike License.
- noun A kind of
gallproduced by a gallflyon the cup of an acorn, and formerly used in tanningand dyeing.
from Wiktionary, Creative Commons Attribution/Share-Alike License
Valonia is used almost wholly for sole leather, either alone or in combination with pine or oak bark or knoppern and myrabolams.
The combination of knoppern, valonia and myrabolams is also quite popular, and gives good results.
The union of valonia and knoppern is that in most general use.
Valonia gives better weight results than knoppern, and is replacing knoppern more and more every year.