Terbium/ˈtɜːrbiəm/ Definition 1 of 1Pro Tip 1/3Scientific Usage Used mainly in scientific and technical contexts, not in everyday conversation. The lab report confirmed the presence of terbium in the sample. Pro Tip 2/3Industry Specific Its application in electronics makes it relevant for people working in tech industries. Smartphone manufacturers often use terbium in their screens. Pro Tip 3/3Element Identification Remember terbium is an element; mentioning it implies talking about substances or materials. Terbium was discovered while examining rare earth metals.