出典:Wiktionary
出典:Wikipedia
出典:『Wikipedia』 (2010/10/07 21:01 UTC 版)
Ox gall is gall, usually obtained from cows, that is mixed with alcohol and used as the wetting agent in marbling, engraving, lithography, and watercolor painting. It is a greenish-brown liquid mixture containing cholesterol, lecithin, taurocholic acid, and glycoholic acid.