transcription, транскрипция: [ əkju:mjʊleɪʃ(ə)n ]
An accumulation of something is a large number of things which have been collected together or acquired over a period of time.
...an accumulation of experience and knowledge.
N-COUNT : oft N of n
Accumulation is the collecting together of things over a period of time.
...the accumulation of capital and the distribution of income...
N-UNCOUNT : oft N of n