• synonyms


[sed-uh-muh n-tey-shuh n]
  1. the deposition or accumulation of sediment.
Show More

Origin of sedimentation

First recorded in 1870–75; sediment + -ation
Related formsself-sed·i·men·ta·tion, noun
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for sedimentation

Historical Examples

  • Sedimentation from this point of view is a convection of energy.

    The Birth-Time of the World and Other Scientific Essays

    J. (John) Joly

  • The sedimentation process, moreover, raises river channels above the level of the nearby terrain.

  • Sedimentation is still going on at river mouths and along the coasts, where deltas are being built and mangrove thickets flourish.

  • Varying winds may348 drive currents this way and that, causing alternations in sedimentation.

  • Where oceanic currents are annually reversed by monsoons, sedimentation may be regularly varied, or interrupted, once a year.

British Dictionary definitions for sedimentation


  1. the process of formation of sedimentary rocks
  2. the deposition or production of sediment
  3. chem biochem the process by which large molecules or macroscopic particles are concentrated in a centrifugal field in a centrifuge or ultracentrifuge
Show More
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012

Word Origin and History for sedimentation


1845, from sediment + -ation.

Show More
Online Etymology Dictionary, © 2010 Douglas Harper

sedimentation in Medicine


  1. The act or process of depositing or forming a sediment.
Show More
The American Heritage® Stedman's Medical Dictionary Copyright © 2002, 2001, 1995 by Houghton Mifflin Company. Published by Houghton Mifflin Company.