[ik-tham-awl, -ol; ik-thuh-mawl, -mol]

noun Pharmacology.

a viscous, reddish-brown to brownish-black substance, obtained by the destructive distillation of bituminous shales, used in medicine chiefly as an antiseptic, analgesic, and local stimulant in skin disorders.

Origin of ichthammol

1905–10; ichth(yo)- (from ichthyosulfonate) + amm(onium) + -ol1
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019