valonia

n. 一种斛果的壳子

发音

UK /vəˈləʊ.ni.ə/
US /vəˈloʊ.ni.ə/

词形变化

valonias 复数 valonias

别名

valonia oak velani velani oak valonea valonea oak vallonea vallonea oak

释义与例句

n.
  1. 1.

    Any of species Quercus macrolepis, now subspecies Quercus ithaburensis subsp. macrolepis or Quercus aegilops of European evergreen oak trees

  2. 2.

    A dried acorn cups of this tree, which are used to make a black dye, used in tanning.

词源

From the Venetan name Valona of the now Albanian city Vlorë around which it grows, unlike in Italy. One of the principal sources of tannin in the English-speaking world in the late 19th century, largely imported from the Ottoman Empire, with Smyrna being the main trading centre for it, whence to Trieste it passed the first time in 1842 to reach the Austro-Hungarian leather industry and become popular in Germany only by the 1880s.

来源：wiktionary