Meanings
nounsennin (uncountable)
- obsoleteuncountablemedicineAn antiseptic preparation made from boric acid, iodine, and phenol.
Origin
From Senn + -in, after Nicholas Senn (1844-1908), American surgeon. Originally a brand name.
Full word history & related roots →Cite this entry
APA
sennin. (n.d.). In WatkinsX Dictionary. Retrieved November 4, 2026, from https://dictionary.watkinsx.com/word/sennin
MLA
“sennin.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/sennin. Accessed November 4, 2026.
Chicago
WatkinsX Dictionary, s.v. “sennin,” accessed November 4, 2026, https://dictionary.watkinsx.com/word/sennin.
Source: sennin on Wiktionary, CC BY-SA 4.0.