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valonia

American  
[vuh-loh-nee-uh] / vəˈloʊ ni ə /

noun

  1. acorn cups of an Old World oak, Quercus macrolepis (orQ. aegilops ), used in tanning, dyeing, and making ink.

valonia British  
/ vəˈləʊnɪə /

noun

  1. the acorn cups and unripe acorns of the Eurasian oak Quercus aegilops, used in tanning, dyeing, and making ink

"Collins English Dictionary — Complete & Unabridged" 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Etymology

Origin of valonia

1715–25; < Italian vallonia < Modern Greek balánia, plural of baláni acorn

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023

Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.