ˈreznəns n. 1
the reinforcement or prolongation of
sound by
reflection or
synchronous vibration. 2 Mech. a
condition in
which an
object or
system is subjected to an oscillating force having a
frequency close to
its own natural frequency. 3 Chem. the
property of a
molecule having a
structure best represented by
two or
more forms
rather than a
single structural formula. 4
Physics a short-lived
elementary particle that is an excited
state of a more stable particle. [OF f. L resonantia
echo (as RESONANT)]