Exotic

Exotic can mean:

• In mathematics:
  • Exotic R⁴ - differentiable manifold homeomorphic but not diffeomorphic to the Euclidean space R⁴
  • Exotic sphere - differentiable manifold homeomorphic but not diffeomorphic to the ordinary sphere

• In physics:
  • Exotic atom atom with one or more electrons replaced by other negatively charged particles
  • Exotic hadrons:
    • Exotic baryons - bound states of 3 quarks and additional particles
    • Exotic mesons - non-quark model mesons
  • Exotic matter - a hypothetical concept of particle physics

• In other fields:
  • Exotic pet - non common pet
    • Exotic cat - a breed of cat
  • Exotic dancer - a type of dancer or stripper
  • Exotic derivatives - a type of financial derivatives
  • Introduced species, also called exotic species, a species not native to an area

See also

• Exotica (disambiguation)
• Exoticism