n. the normal condition of sensitiveness in a coherer (disused)
n. The process by which a quantum system interacts with its environment in such a way that no interference between states of the system can be observed.
The Century Dictionary and Cyclopedia
n. Decohering action.
Word Usage
"A popular interpretation of Quantum Mechanics called "decoherence" is one interpretation where a conscious mind is not an essential component to physics but is a passive spectator."