arsenide
A chemical compound of arsenic with a more electropositive element. Technical term used in chemistry.
Gallium arsenide is used as a semiconductor material.
Common spelling using katakana for the element symbol ヒ (arsenic) and kanji 化物 (compound).
Kanji spelling using 砒 (arsenic). Less common but still used in technical contexts.
Compound of ヒ (arsenic, from German 'Arsen' via Dutch or directly from the element symbol) + 化物 (compound, chemical compound).