English

Noun

naphtol ‎(plural naphtols)

1. Archaic form of naphthol.
   • 1883, The American Journal of the Medical Sciences

     This was used as a soap with hot water to cleanse the scalp once daily, a small portion of lather being allowed to dry on the scalp. At a later date a solution of naphtol in alcohol, twenty grains to the ounce (4 per cent.), was employed […]