noun ·Rare ·Advanced level

Definitions

Noun

1. 1
   An antiseptic preparation made from boric acid, iodine, and phenol. obsolete, uncountable

Etymology

From Senn + -in, after Nicholas Senn (1844-1908), American surgeon. Originally a brand name.

Data sourced from Wiktionary, WordNet, CMU, and other open linguistic databases. Updated March 2026.