[ahr-seen, ahr-seen, -sin] 
| 1. | Also called arseniuretted hydrogen. a colorless, flammable, slightly water-soluble gas, AsH3, having a fetid, garliclike odor, used in chemical warfare. |
| 2. | any derivative of this compound in which one or more hydrogen atoms are replaced by organic groups. |
| ar·sine (är-sēn', är'sēn') n. A colorless, flammable, very poisonous gas, H3As, having an odor like garlic and used in chemical warfare, as a solid-state doping agent, and in organic synthesis. [ars(enic) + -ine2.] |
sin