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   resonance

   /ˈrɛzənəns/

   noun

   • 1. the quality in a sound of being deep, full, and reverberating: "the resonance of his voice"
   • ▪ the power to evoke enduring images, memories, and emotions: "the concepts lose their emotional resonance"
   • 2. the reinforcement or prolongation of sound by reflection from a surface or by the synchronous vibration of a neighbouring object.
   • 3. the condition in which an electric circuit or device produces the largest possible response to an applied oscillating signal.
   • ▪ the condition in which an object or system is subjected to an oscillating force having a frequency close to its own natural frequency.
   • 4. the occurrence of a simple ratio between the periods of revolution of two bodies about a single primary.
   • 5. the property of having a molecular structure which cannot adequately be represented by a single structural formula but is a composite of two or more structures of higher energy.
   • 6. a short-lived subatomic particle that is an excited state of a more stable particle.

   Word Origin late Middle English: from Old French, from Latin resonantia ‘echo’, from resonare ‘resound’ (see resonant).

   Scrabble Points: 11

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