accumulation accumulation /əˌkjʊmjəˈleɪʃən/

noun

1. () An increase by natural growth or addition  ( accretion , accumulation )
   an increase by natural growth or addition
     The planet grew through the process of accretion, gradually accumulating dust and gas.
   The planet grew through the process of accretion, gradually accumulating dust and gas.
   
2. () The act of accumulating  ( accrual , accruement , accumulation )
   the act of accumulating
   
3. () Several things grouped together or considered as a whole  ( assemblage , accumulation , aggregation , collection )
   several things grouped together or considered as a whole
     She has an impressive collection of rare stamps.
   She has an impressive collection of rare stamps.
   
   
4. (finance) profits that are not paid out as dividends but are added to the capital base of the corporation  ( accumulation )
   (finance) profits that are not paid out as dividends but are added to the capital base of the corporation