from Wiktionary, Creative Commons Attribution/Share-Alike License
- n. Any of various reddish-brown phenolic substances found in the bark of oak, etc.
from The Century Dictionary and Cyclopedia
- n. One of a class of amorphous red compounds, insoluble in water but soluble in alcohol and caustic alkalies, obtained by boiling tannins with dilute mineral acids or caustic alkalies. It occurs also to some extent in the tannin-bearing plants, owing to oxidation by the air. Also called cinchona-red, kino-red, etc.
Ancient Greek φλόος="bark" and βαφή="dye". (Wiktionary)