See Also: isospin(dictionary)
isospin(encyclopedia)

isospin (iou)



isospin noun. M20.
[Contr. of isotopic spin, isobaric spin.]
Physics. A vector quantity associated with subatomic particles and atomic nuclei, expressing that the strong interaction does not depend on the electric charge, its quantum number (symbol T or I) being so assigned that similar particles differing only in charge-related properties can be treated as different states of a single particle.