- (Of a material or membrane) allowing liquids or gases to pass through it: a frog’s skin is permeable to water permeable sandy soilsMore example sentences
- The dialysis membrane is permeable to all the plasma constituents, with the exception of plasma proteins.
- A semi-permeable membrane is otherwise known as a selectively permeable membrane.
- A ‘carrier bed’ is a porous and permeable rock near the source rock through which petroleum flows from source to trap.
late Middle English: from Latin permeabilis, from permeare 'pass through' (see permeate).