(chemistry) any inorganic selenide containing two atoms of selenium per molecule / (chemistry) any organic compound of general formula RSeSeR'

plural of diselenide

(inorganic chemistry) The binary compound of carbon and selenium CSe₂

A chemical compound with the formula GeSe. It exists as black crystalline powder having orthorhombic crystal symmetry; at temperatures ~650 °C, it transforms into the cubic NaCl structure.