permeable

About 1.55 uses per million words.

Meaning

1. adjective Able to be permeated; absorbing or allowing the passage of fluids.

   permeable strata

2. adjective Allowing the passage of persons, information, or other things, especially when such passage occurs despite hopes or expectations otherwise.

   permeable borders

Similar words

porous semipermeable leaky tight open treatable susceptible patent spongy absorbent

Often followed by

to membrane and than membranes boundaries soils by for