Meanings
nounJames's powder (uncountable)
- archaicuncountablemedicineA powder consisting of one part oxide of antimony and two parts calcium phosphate, once falsely claimed to have medical benefits.
Synonyms: antimonial powder, fever powder
Synonyms & antonyms
nounA powder consisting of one part oxide of antimony and two parts calcium phosphate, once falsely claimed to have medical benefits.
Also see
Origin
Named after Dr. Robert James, an English physician.
Full word history & related roots →Cite this entry
APA
James's powder. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/James's%20powder
MLA
“James's powder.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/James's%20powder. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “James's powder,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/James's%20powder.
Source: James's powder on Wiktionary, CC BY-SA 4.0.