permeable

/'pə:mjəbl/

Thân thiện

The rainwater passes through the permeable soil.

Definition

1. Adjective:
   • Allowing fluids or gases to pass or diffuse through: Describes a material or substance that permits liquids or gases to flow through it, typically via pores or openings.

Usage

The adjective "permeable" is used to describe the physical property of a material. It is often used in scientific, environmental, and technical contexts. It can be modified by adverbs like "highly," "slightly," or "semi-" to indicate the degree of permeability.

Examples

• Adjective:
  • Sandy soil is highly permeable, allowing rainwater to drain quickly.
  • A good raincoat is made from a material that is not permeable to water.
  • The permeable membrane in the filter allows only small molecules to pass.

Advanced Usage

• "Semi-permeable": A specific type of permeability where a membrane allows only certain substances (like water) to pass through while blocking others (like salts or large molecules).
  • Osmosis occurs across a semi-permeable membrane.

Variants and Related Words

• Permeability (n): The state or quality of being permeable; the measure of a material's ability to transmit fluids.

  • The permeability of the aquifer determines how fast groundwater can flow.

• Permeate (v): To spread or flow throughout; to pass through every part of.

  • The smell of baking bread permeated the entire house.

• Impermeable (adj): The direct opposite, meaning not allowing fluids or gases to pass through.

  • An impermeable layer of clay prevents water from seeping deeper.

Synonyms

• Porous: Having many small holes that allow water or air to pass through slowly.
• Pervious: (Formal) Allowing passage; capable of being penetrated.

Antonyms

• Impermeable: Not allowing fluid to pass through.
• Waterproof: Impervious to water.
• Impenetrable: Impossible to pass through or enter.

Học thuật

Adjective

1. allowing fluids or gases to pass or diffuse through
   • permeable membranes
   • rock that is permeable by water