galvoEnglishOxford Dictionary of Englishgalvo /ˈɡalvəʊ / ▸ noun (plural galvos) informal 1 a galvanometer: the operating parameters of the individual galvos are established through complete self-diagnosis and system check [as modifier] a galvo scanner is used to guide a focused laser beam over the surface to be processed. 2 Australian English informal galvanized iron.