sediment

noun
sed·i·ment | \ˈse-də-mənt \

Definition of sediment 

(Entry 1 of 2)

1 : the matter that settles to the bottom of a liquid

2 : material deposited by water, wind, or glaciers

sediment

verb
sed·i·ment | \ˈse-də-ˌment \
sedimented; sedimenting; sediments

Definition of sediment (Entry 2 of 2)

transitive verb

: to deposit as sediment

intransitive verb

1 : to settle to the bottom in a liquid

2 : to deposit sediment

Keep scrolling for more

Synonyms & Antonyms for sediment

Synonyms: Noun

deposit, deposition, dregs, grounds, precipitate, settlings

Synonyms: Verb

lay, settle

Antonyms: Verb

raise

Visit the Thesaurus for More 

Examples of sediment in a Sentence

Noun

There was a layer of sediment in the bottom of the tank. the sediment at the bottom of the river needs to be routinely dredged so that it doesn't interfere with barge traffic

Verb

the water flowing into the reservoir is sedimenting silt faster than was originally expected
See More

Recent Examples on the Web: Noun

The strength of the rock, cliff height, sediment composition, the slope of the beach, the slope of the seafloor, wave action, human intervention and other variables come with their own uncertainties. Rosanna Xia, latimes.com, "Southern California's coastal communities could lose 130 feet of cliffs this century as sea levels rise," 27 June 2018 Construction will include grading, erosion control, removal and replacement of curb and gutter, backfilling, and sediment removal. Karen Huppertz, ajc, "Lawrenceville approves emergency replacement of Thornbush Tr. culvert," 11 June 2018 Flatland consultant David Heilman recommended the riffle modification, which involves installing a sloping stepping stone system that mimics the elevation of the dam, but allows fish and sediment to wash over it. Carole Carlson, Post-Tribune, "Lake Station dam option retains river culture," 16 May 2018 Environmental agencies on Friday were investigating why workers at a construction site were pumping a slurry of water and sediment directly into the Chicago River, creating a cloudy plume beneath the Randolph Street bridge. Peter Kendall, chicagotribune.com, "Caught on camera: Worker pumps slurry into Chicago River, and now regulators are investigating," 15 June 2018 According to the United States Geological Survey's website, sinkholes are most common when the land below the surface is a type of sediment easily dissolved by groundwater, such as limestone, carbonate rock or salt beds. Julian Gill, Houston Chronicle, "Sewage leaks likely a factor in Houston sinkholes, expert says," 10 July 2018 The crew of the EV Nautilus used underwater robots equipped with a suction tube to slurp up samples of sediment. Sandi Doughton, The Seattle Times, "Meteorite search off the Washington coast recovers two small fragments," 3 July 2018 Scientists hope the oysters will survive and filter sediment and pollutants from the river and create food and habitat for other creatures. Scott Dance, baltimoresun.com, "Man-made oyster reef near Key Bridge 'flourishing,' Chesapeake Bay Foundation says," 28 June 2018 The money will be used to dredge the harbor, where a great deal of sediment has accumulated. BostonGlobe.com, "A craft-making class, honors for a school’s past graduates, and a harbor cleanup," 22 June 2018

Recent Examples on the Web: Verb

The cores, presented here today at the annual meeting of the Geological Society of America, were captured at the farthest extent of the ash’s reach, recorded as wisps of tephra in finely sedimented, ancient mud uplifted near the ocean floor. Paul Voosen, Science | AAAS, "Yellowstone’s massive volcano could erupt more frequently than scientists thought," 25 Oct. 2017

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'sediment.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of sediment

Noun

1547, in the meaning defined at sense 1

Verb

1859, in the meaning defined at transitive sense

History and Etymology for sediment

Noun

Latin sedimentum settling, from sedēre to sit, sink down

Keep scrolling for more

Learn More about sediment

Statistics for sediment

Last Updated

17 Oct 2018

Look-up Popularity

Time Traveler for sediment

The first known use of sediment was in 1547

See more words from the same year

Keep scrolling for more

More Definitions for sediment

sediment

noun

English Language Learners Definition of sediment

: material that sinks to the bottom of a liquid

: material (such as stones and sand) that is carried into water by water, wind, etc.

sediment

noun
sed·i·ment | \ˈse-də-mənt \

Kids Definition of sediment

1 : the material from a liquid that settles to the bottom

2 : material (as stones and sand) carried onto land or into water by water, wind, or a glacier

sediment

noun
sed·i·ment | \ˈsed-ə-mənt \

Medical Definition of sediment 

(Entry 1 of 2)

: the matter that settles to the bottom of a liquid

sediment

transitive verb
sed·i·ment | \-ˌment \

Medical Definition of sediment (Entry 2 of 2)

: to deposit as sediment the synaptosomes were sedimented by centrifugation

intransitive verb

1 : to settle to the bottom in a liquid let the red blood cells sediment for 30 minutes

2 : to deposit sediment

Keep scrolling for more

Comments on sediment

What made you want to look up sediment? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

a state of commotion or excitement

Get Word of the Day daily email!

Test Your Vocabulary

Words from Greek and Roman Mythology Quiz

  • the-triumph-of-venus-by-alessandro-magnasco
  • Boreal comes from the name of the ancient Greek god of which wind?
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
Word Winder's CrossWinder

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!