noun.
The separation of a suspension of solid particles into a concentratedslurry and a supernatantliquid, either to concentrate the solid or to clarify the liquid
WordNet 3.0 Copyright 2006 by Princeton University. All rights reserved.
noun.
the phenomenon of sediment or gravel accumulating
Word Usage
"A sort of precipitation occurred of what might be called the sedimentation or the fallout from illuminations, insights, and other life experiences that were very important—tragic experiences included."