xenon has definitions from the field of chemistry
[ noun ] (chemistry) a colorless odorless inert gaseous element occurring in the earth's atmosphere in trace amounts


atomic_number_54 Xe

Used in print

(Walter H. Buchsbaum, "Advances in Medical Electronics"...)

Three different wavelengths of ultraviolet_radiation are selected by the variable filters placed in_front_of the three mercury xenon lights which serve as the ultraviolet sources .