Decoherer \De`co*her"er\ (d[=e]`k[-o]*h[=e]r"[~e]r), n. [Pref.
de- + coherer.] (Elec.)
A device for restoring a coherer to its normal condition
after it has been affected by an electric wave, a process
usually accomplished by some method of tapping or shaking, or
by rotation of the coherer.
[Webster 1913 Suppl.]