Impermeable - English Definition & Meaning

Definition

Impermeable describes a substance that does not allow liquids or gases to pass through it. It acts like a solid barrier, preventing any flow. Think of a plastic bag – it keeps water from leaking out. Impermeable is the opposite of permeable, which allows passage. Materials like clay and certain plastics are naturally impermeable. It is essential for creating waterproof containers and barriers. Impermeability offers protection against leakage and contamination. In essence, it's impassable to fluids.

Etymology

The word "impermeable" combines the prefix "im-" (meaning not) with "permeable" (able to pass through). As covered before, "permeable" comes from the Latin "permeare" (to pass through). Therefore, "impermeable" literally means "not able to pass through." This term is commonly used in scientific and technical contexts.

Related Words

Examples

• "The raincoat was made of impermeable material, keeping her dry in the rain."
• "Clay soil is impermeable, preventing water from draining quickly."
• "The dam was constructed with an impermeable core to prevent water leakage."
• "The packaging was designed to be impermeable, preserving the freshness of the product."

Encouragement

Expand your science and engineering vocabulary with 'impermeable'! Understanding this word is essential for describing materials that block fluids. It's a useful term for understanding various applications from construction to clothing. 👷

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