from The American Heritage® Dictionary of the English Language, 4th Edition
- n. A crystalline substance, C15H14O6, derived from catechu and used in tanning and dyeing. Also called catechol.
from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. catechol
from the GNU version of the Collaborative International Dictionary of English
- n. One of the tannic acids (C15H14O6), extracted from catechu as a white, crystalline substance; -- called also catechuic acid, catechinic acid, cyanidol, and catechuin. It is a flavonoid found generally in higher woody plants, and is used in dyeing and tanning.
from The Century Dictionary and Cyclopedia
- n. A principle (C19H18O8) extracted from catechu, having a snow-white silky appearance, and crystallizing in fine needles. Also called catechuic acid and catechuin.
from WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
- n. a tannic acid that is extracted from black catechu as a white crystalline substance
catech(u) + -in.(American Heritage® Dictionary of the English Language, Fourth Edition)