Medical Dictionary

arsenic trioxide

noun ar·se·nic trioxide \ˌärs-nik-, -ən-ik-\

Definition of ARSENIC TRIOXIDE

:  a poisonous trioxide As2O3 or As4O6 of arsenic that was formerly used in medicine and dentistry but has been abandoned for therapeutic purposes and is now used especially as an insecticide and weed killer—called also arsenic, arsenious acid, arsenious oxide, white arsenic
April 01, 2015
diapause Hear it
a period of physiological dormancy
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