accumulates; accumulated; accumulating
1 [+ object] : to gather or acquire (something) gradually as time passes
She has slowly accumulated [=amassed] a fortune.
You can accumulate [=earn] bonus points by participating in surveys.
The police have been accumulating [=collecting] evidence of his guilt.
2 [no object] : to increase gradually in amount as time passes
A large amount of debris has accumulated [=collected] at the construction site.
Evidence of his guilt is accumulating.
— accumulation /əˌkjuːmjəˈleɪʃən/ noun, plural accumulations
the accumulation of evidence against him
The company's goal was a slow, steady accumulation of profits.
The disease is caused by accumulations of fat in the kidneys.