a city, in Transvaal Province, Republic of South Africa. Located in Witwatersrand region. Population, 197,000 (1968, not including suburbs). Inhabited primarily by Africans and mulattoes; there are 65,200 Europeans. Germiston is a satellite city of Johannesburg. It is an important railroad and air-transportation junction. Railroad repair shops and a gold-refining plant are located there. It also has chemical, metalworking, glass, garment, food-processing, and cotton-ginning industries. Germiston is the site of a technical college.