isotopic spin Word Origin noun Physics.
- a quantum number that is related to the number of different values of electric charge that a given kind of baryon or meson may have. Symbol: I
Origin of isotopic spin First recorded in 1935–40 Also called isospin, i-spin. British Dictionary definitions for isotopic spin isotopic spin noun
- See isospin
isotopic spin in Science isotopic spin [ī′sə-tŏp′ĭk]
- See isospin.