ox gall
noun
variants
or less commonly oxgall
or ox-gall
1
: bile obtained from an ox
2
: a preparation consisting of alcohol mixed with ox bile that is used chiefly as a wetting agent (as for watercolors)
… painting large, flat areas in gouache can be difficult because of its tendency to streak. Adding a few dozen drops of ox gall to the cup of mixing water can minimize streaking by slowing drying time …—
Linda S. Price
Linda S. PriceCite this Entry
“Ox gall.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/ox%20gall. Accessed 18 Apr. 2025.
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