/ ˌmætʃuˈreɪʃn; NAmE / noun [ U ] ( formal )
1.
the process of becoming or being made mature (= ready to eat or drink after being left for a period of time)
2.
the process of becoming adult
••
WORD ORIGIN
late Middle English (denoting the formation of pus): from medieval Latin maturatio(n-) , from Latin maturare , from maturus timely, ripe.