Ichthyol

noun

noun ·Rare ·Advanced level

Definitions

Noun
  1. 1
    The ammonium salt of sulfonated bitumen; used to treat some forms of skin diseases countable, uncountable

Etymology

Ancient Greek ἰχθύς (ikhthús, “fish”) + -ol, since it is an oily mixture prepared by dry distillation of a bituminous mineral containing fossil fishes.

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