knoppern
English edit
Etymology edit
Compare German Knopper. See knop.
Noun edit
knoppern (plural knopperns)
- A kind of gall produced by a gallfly on the cup of an acorn, and formerly used in tanning and dyeing.
Part or all of this entry has been imported from the 1913 edition of Webster’s Dictionary, which is now free of copyright and hence in the public domain. The imported definitions may be significantly out of date, and any more recent senses may be completely missing.
(See the entry for “knoppern”, in Webster’s Revised Unabridged Dictionary, Springfield, Mass.: G. & C. Merriam, 1913, →OCLC.)