[′biz·məth ′ī·ə‚dīd] (inorganic chemistry) BiI3 A bismuth halide that sublimes in grayish-black hexagonal crystals melting at 408°C, insoluble in water; used in analytical chemistry.
bismuth iodide
bis·muth i·o·dide
BiI3; used in electron microscopy to reveal synapses. Synonym(s): bismuth triiodide