noun plural but singular or plural in construction
: a quantum mechanics based upon the application of postulates connecting frequencies and intensities of spectrum lines by the use of a matrix-involving algebra
noun plural but singular or plural in construction
: a quantum mechanics based upon the application of postulates connecting frequencies and intensities of spectrum lines by the use of a matrix-involving algebra
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012