from the GNU version of the Collaborative International Dictionary of English
- n. A fast dyestuff, C20H8O6, made by heating gallein with strong sulphuric acid. It dyes mordanted fabrics green.
from The Century Dictionary and Cyclopedia
- n. Same as azulene.
- n. A coal-tar color used in dyeing, prepared by treating gallein with strong sulphuric acid.
- n. See cerulein.
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