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单词 orchil
释义

orchil

/ˈɔːtʃɪl /
noun
1 [mass noun] A red or violet dye obtained from certain lichens, used as a source of litmus, orcinol, and other pigments.He paints women with coloured earth, mud, carbon powder or orchil.
2A lichen with flattened fronds from which orchil is produced.
  • Roccella (order Graphidiales) and other genera: several species, including the Mediterranean R. tinctoria, used for dyeing, and the Madagascan R. montagnei, used for litmus.

Origin

Late 15th century: from Old French orcheil, related to Spanish urchilla; of uncertain origin.

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更新时间:2024/11/13 10:33:24