spectroscopic lamp
electric lamp that gives a well-defined line spectrum
Note 1 to entry: A spectroscopic lamp can be used with filters to obtain monochromatic radiation.
Note 2 to entry: This entry was numbered 845-07-54 in IEC 60050-845:1987.
Note 3 to entry: This entry was numbered 17-1237 in CIE S 017:2011.