noun. ['əˌkjuːmjəˈleɪʃən'] an increase by natural growth or addition.
noun. ['əˌkjuːmjəˈleɪʃən'] several things grouped together or considered as a whole.
noun. ['əˌkjuːmjəˈleɪʃən'] the act of accumulating.
noun. ['əˌkjuːmjəˈleɪʃən'] (finance) profits that are not paid out as dividends but are added to the capital base of the corporation.