#resonance  an excited state of a stable particle causing a sharp maximum in the probability of absorption of electromagnetic radiation
  supertype:  physical_phenomenon  a natural phenomenon involving the physics of matter and energy
  subtype:  nuclear_resonance__nuclearresonance  the resonance absorption of a gamma ray by a nucleus identical to the nucleus that emitted the gamma ray
  subtype:  magnetic_resonance  resonance of electrons or atoms or molecules or nuclei to radiation frequencies as a result of space quantization in a magnetic field
     subtype:  nuclear_magnetic_resonance__NMR__proton_magnetic_resonance  resonance of protons to radiation in a magnetic field

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