permeable

/ˈpʌrmiəbəl/

/ˈpʌmiəbəl/

Something that is permeable can be passed through, especially by liquids or gases. "I wish I hadn't worn my permeable sweater to the picnic when the weatherman called for thunderstorms. The rain seeped right through the fabric, soaking me to the skin."

A permeable surface allows materials like liquids to pass through — either in or out. Inside the body, the walls of cells are permeable membranes that allow fluids and nutrients to get in and nourish the cells. A permeable shirt is good to wear in the summer, because it helps release the sweat sticking to the skin.

Definitions of permeable

1. adjective

   allowing fluids or gases to pass or diffuse through
   “permeable membranes”

   “rock that is permeable by water”

   synonyms:

   leaky

   permitting the unwanted passage of fluids or gases

   porous

   able to absorb fluids

   semipermeable

   (of a membrane) selectively permeable

   pervious

   admitting of passage or entrance

   antonyms:

   impermeable

   preventing especially liquids to pass or diffuse through

   tight

   of such close construction as to be impermeable

   retentive

   having the power, capacity, or quality of retaining water

   water-repellent, water-resistant

   hindering the penetration of water

   imperviable, impervious

   not admitting of passage or capable of being affected