Absorption may refer to: Chemistry and biologyAbsorption (chemistry), absorption of particles of gas or liquid in liquid or solid materialAbsorption (skin), a route by which substances can enter the body through the skinAbsorption (pharmacokinetics), absorption of drugs in bodyCarbon dioxide scrubber, the absorbent in a rebreatherAbsorption (small intestine), absorption of nutrients by the small intestine Physics and mechanical engineering Absorption (electromagnetic radiation), absorption of l… (More on Absorption)