sediment

/'sedimənt/
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sediment

The river's current slows, allowing sediment to settle on the bottom.

Definition

  1. Noun:

    • Matter deposited by natural processes: Solid material that settles at the bottom of a liquid or that is transported and deposited by water, wind, or ice.
    • Geological deposits: Material, such as sand, silt, or clay, that is eroded from rocks and later settles in layers, often forming sedimentary rock.

  2. Verb:

    • To settle as sediment: For solid particles in a liquid to sink and accumulate at the bottom.
    • To deposit as sediment: To cause or allow particles to be deposited.
Usage Examples

  • Noun:

    • The river's flow slowed, allowing the sediment to settle on the riverbed.
    • Geologists study layers of sediment to understand Earth's history.

  • Verb:

    • If you let the muddy water stand, the dirt will sediment.
    • The glacier sedimented large amounts of rock and soil as it retreated.
Advanced Usage

  • "in sediment": existing in the form of settled particles.

    • The pollutants were trapped in the sediment at the bottom of the lake.

  • "sediment out": (phrasal verb) to separate and settle from a suspension.

    • The fine clay particles will slowly sediment out of the water column.
Variants and Related Words

  • Sedimentary (adj): Relating to or formed from sediment.

    • Sandstone is a common sedimentary rock.

  • Sedimentation (n): The process of settling or being deposited as sediment.

    • The sedimentation rate in the reservoir is alarmingly high.
Synonyms
  • Deposit (n): Material laid down by a natural process.
  • Silt (n): Fine sand, clay, or other material carried by running water and deposited as a sediment.
  • Dregs (n): The remnants of a liquid left in a container, together with any sediment.
  • Precipitate (n/v): (Chemistry) A solid separated from a solution, or to cause this to happen.
Related Phrasal Verbs
  • Settle out: To sink and form a layer at the bottom (similar to "sediment out").
    • The particles are too light to settle out quickly.
Related Idioms
  • "The sediment of time": (Figurative) The accumulated results or memories of past events.
    • The old letters were a sediment of time, preserving fragments of a forgotten life.
sediment

The river's current slows, allowing sediment to settle on the bottom.

Noun
  1. matter that has been deposited by some natural process
Verb
  1. settle as sediment
  2. deposit as a sediment

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