noun (n)

• (chemistry) a process in which one substance permeates another; a fluid permeates or is dissolved by a liquid or solid(noun.process)

  Synonym:
  soaking up
  

  source: wordnet30
• (physics) the process in which incident radiated energy is retained without reflection or transmission on passing through a medium(noun.process)

  Example:
  The absorption of photons by atoms or molecules.
  

  source: wordnet30
• the social process of absorbing one cultural group into harmony with another(noun.process)

  Synonym:
  assimilation
  

  source: wordnet30
• the process of absorbing nutrients into the body after digestion(noun.process)

  source: wordnet30
• complete attention; intense mental effort(noun.cognition)

  Synonym:
  concentration, engrossment, immersion
  

  source: wordnet30
• the mental state of being preoccupied by something(noun.cognition)

  Synonym:
  engrossment, preoccupancy, preoccupation
  

  source: wordnet30
• The act or process of absorbing or sucking in anything, or of being absorbed and made to disappear; as, the absorption of bodies in a whirlpool, the absorption of a smaller tribe into a larger.(noun)

  source: webster1913