Word Study
ichthyol
CIDE DICTIONARY
ichthyol, n. [Gr. 'ichqy`s, -y`os, a fish + (prob.) L. oleum oil; but cf. Ichthyolite.].
An oily substance prepared by the dry distillation of a bituminous mineral containing fossil fishes. It is used in medicine as a remedy in some forms of skin diseases. [Webster 1913 Suppl.]
For further exploring for "ichthyol" in Webster Dictionary Online