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ONAD→cacodyl

cacodyl

Flag: gbEnglishOxford New American Dictionary
cacodyl /ˈkakəˌdil, ˈkækəˌdɪl /
▸ noun Chemistry a malodorous, toxic, spontaneously flammable liquid compound containing arsenic.
Chemical formula: ((CH3)2As)2.
▪ [as modifier] of or denoting the radical —As(CH3)2, derived from cacodyl.
– ORIGIN mid 19th century : from Greek kakōdēs ‘stinking’ (from kakos ‘bad’) + -yl.