blue butter

noun

A mercurial ointment used to kill parasites.

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Meanings

nounblue butter (uncountable)
  1. obsoleteuncountableA mercurial ointment used to kill parasites.
Cite this entry
APA

blue butter. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/blue%20butter

MLA

“blue butter.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/blue%20butter. Accessed November 4, 2026.

Chicago

WatkinsX Dictionary, s.v. “blue butter,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/blue%20butter.

Source: blue butter on Wiktionary, CC BY-SA 4.0.