permeable

Adjective

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

Adj

• Able to be permeated; absorbing or allowing the passage of fluids.
• Allowing the passage of persons, information, or other things, especially when such passage occurs despite hopes or expectations otherwise.

Examples

• permeable borders
• permeable boundaries
• permeable strata
• Rainwater sinks through permeable rock to form an underground reservoir.

Synonyms

penetrable, water-permeable

Antonyms

impermeable, impenetrable, impervious, nonpermeable

Related Words

permeability, porous