The Collaborative International Dictionary
Quercite
Quercite \Quer"cite\, n. (Chem.) A white crystalline substance, C6H7(OH)5, found in acorns, the fruit of the oak ( Quercus). It has a sweet taste, and is regarded as a pentacid alcohol.
Wiktionary
quercite
n. (context organic compound English) A white crystalline substance found in acorns.