to absorb something can mean to take something in
absorbency is permeability. fluid_absorption is taking_in. absorber is absorbent_material. cuesta is tangible_thing. fluid_absorption is not taking_in. digestive_absorption is biological_absorption_event. almost_transparent is tangible_thing. absorbency is not permeability. absorber is not absorbent_material. absorbate is sorbate.