Definition

1. Noun:
   • A small channel: A narrow, shallow groove or furrow, especially one formed by the erosive action of flowing water, such as on a hillside or in soil.
   • A small stream: A tiny, gently flowing stream of water, often a minor tributary or a seasonal watercourse.

Examples of Usage

• Noun:
  • After the heavy rain, a rill formed down the slope of the garden, carrying away the loose topsoil.
  • We followed the rill through the meadow until it joined a larger brook.

Advanced Usage

• Geological/Landscape Context: In geology and geomorphology, a "rill" specifically refers to a small, incised channel formed by surface runoff, representing the initial stage of water erosion.
  • The study focused on how rills evolve into larger gullies over time.

Variants and Related Words

• Rillet (n): A very small rill; a tiny streamlet. This is a less common variant.
  • Only a faint rillet of water trickled from the spring.

Synonyms

• Rivulet: A very small stream.
• Streamlet: A small stream.
• Runnel: A small stream or brook; also refers to a narrow channel.
• Brook: A small, natural stream of fresh water.

Related Phrases

(Note: "Rill" is a specific noun and does not commonly form phrasal verbs or idioms.)

Noun

1. a small channel (as one formed by soil erosion)
2. a small stream