Physics.
an optical spectrum consisting of groups of closely spaced spectral lines, characteristic of molecules. Cf. continuous spectrum, line spectrum .
[ 1865-70 ]
Physics.
an optical spectrum consisting of groups of closely spaced spectral lines, characteristic of molecules. Cf. continuous spectrum, line spectrum .
[ 1865-70 ]
Random House Webster's Unabridged English dictionary. Полный английский словарь Вебстер - Random House . 2012