scandium

noun

a rare, silvery-white, metallic chemical element occurring with various rare-earth elements, used to produce high-intensity light sources, etc.: symbol, Sc; at. no., 21

Etymology: ModL: so named (1879) by L. F. Nilson (1840-99), Swed chemist < ML Scandia, Scandinavia (source of the ore from which it was isolated) + -ium