核自旋 Traditional form: 核自旋 Pinyin (reading): hézìxuán Definitions: nuclear spin Characters: 核 - core, kernel; nut, seed; atom 自 - self; private, personal; from 旋 - to revolve, to orbit, to return Traditional characters: 核 - core, kernel; nut, seed; atom 自 - self; private, personal; from 旋 - to revolve, to orbit, to return