line broadening A widening of the absorption and emission lines in a spectrum due to any of several factors. These include Doppler broadening, caused by movements within the emitting gas, pressure broadening or the Stark effect, due to collisions between atoms and molecules, and the Zeeman effect, due to a strong magnetic field. Related category • SPECTRA AND SPECTROSCOPY Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) |