adjective
permeable
PUR-mee-uh-bul/ˈpɜːrmiəbl/
Allowing things to pass through.
The permeable cloth lets droplets pass through into the glass below.
Etymology
The pieces describe something that can be passed through. Originally applied to passable areas and penetrable buildings, the word now describes materials that let fluids pass through without rupture or displacement.
In context
Tectonic movement kept the fault zone open and permeable, creating perfect traps for gold and allowing mineral-rich fluids to flow freely.
More examples
- The membrane is permeable to oxygen but blocks larger molecules.
- Permeable pavement lets rain soak into the ground.
- The boundaries between these musical styles remain permeable.
Forms
permeable
permeability noun — The ability to let substances pass through.
permeate verb — To pass through or spread throughout something.
Similar words
- porous
- Emphasizes small openings through which air or liquid can pass.
- penetrable
- Means something can be entered or pierced, not necessarily traversed.