valonia

Noun

va=lo=ni=a

CIDE DICTIONARY

valonia, n. [It. vallonia, vallonea, fr. NGr. balania`, balanidia`, the holm oak, bala`ni, balani`di, an acorn, Gr. ba`lanos.].

The acorn cup of two kinds of oak (Quercus macrolepis, and Quercus vallonea) found in Eastern Europe. It contains an abundance of tannin, and is much used by tanners and dyers. [1913 Webster]
A genus of marine green algæ, in which the whole frond consists of a single oval or cylindrical cell, often an inch in length. [1913 Webster]

valonia, n. acorn-cups of an evergreen oak, Quercus macrolepsis, used in tanning, dyeing, and making ink.

Etymology

It. vallonia ult. f. Gk balanos acorn