DuckCorp Dico

Found one definition

1.                 From WordNet (r) 3.0 (2006):
                   
   
   
                   
                     
   uptake
       n 1: the process of taking food into the body through the mouth
            (as by eating) [syn: consumption, ingestion, intake,
            uptake]
       2: a process of taking up or using up or consuming; "they
          developed paper napkins with a greater uptake of liquids"