atoxyl
noun
atox·yl
əˈtäksə̇l,
āˈ-,
-ēl
plural -s
: a white crystalline compound C6H7AsNNaO3·4H2O formerly used in the treatment of syphilis and sleeping sickness, its use frequently causing blindness : the monosodium salt of para-arsanilic acid
Word History
Etymology
International Scientific Vocabulary a- entry 2 + toxic + -yl; originally formed in German