| convergence limit [kǝn`vǝr·jǝns ´lim·ǝt] SPECTROSCOPY 1. The short-wavelength limit of a set of spectral lines that obey a Rydberg series formula; equivalently, the long- wavelength limit of the continuous spectrum corresponding to ionization from or recombination to a given state. 2. The wavelength at which the difference between successive vibrational bands in a molecular spectrum decreases to 0. |