• Webster's Revised Unabridged Dictionary
    • n Alkarsin (Chem) A spontaneously inflammable liquid, having a repulsive odor, and consisting of cacodyl and its oxidation products; -- called also Cadel's fuming liquid.
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Century Dictionary and Cyclopedia
    • n alkarsin A heavy, brown, fuming, and extremely poisonous liquid containing cacodyl and its oxidation products: formerly known as Cadet's fuming liquid. It is characterized by an insufferable smell and by spontaneous ignition on exposure to the air. It has been proposed to use it in warfare to charge shells, whose explosion would set a ship on fire and destroy the crew by the poisonous vapor. Also spelled alcarsin.
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Webster's Revised Unabridged Dictionary
Alkali, + ars,enic + -in,