absorptive

noun

1. an absorbing or being absorbed
2. the fact or state of being much interested or engrossed
3. Biol. the passing of nutrient material, medication, etc. into or through tissues, as the intestinal walls, the blood, etc.
4. Physics
   1. a taking in and not reflecting, as of radiant energy
   2. partial loss in energy of light, radio waves, etc. passing through a medium