resonance

n 1: an excited state of a stable particle causing a sharp

maximum in the probability of absorption of

electromagnetic radiation

2: a vibration of large amplitude produced by a relatively

small vibration near the same frequency of vibration as

the natural frequency of the resonating system

3: having the character of a loud deep sound [syn: {plangency},

{reverberance}, {ringing}, {sonorousness}, {sonority}, {vibrancy}]