orcein

n. [化]苔红素,地衣红

词形变化

orceins 复数 orceins

释义与例句

n.
  1. 1.

    a dye, related to litmus, that is extracted from the lichen Rocella tinctoria; used as a microscopic stain and as a food colouring

    不可数 化学

词源

From French orcéine, modification of orcinol. See also orchil.

来源：wiktionary