deposition
n. C / U C1 Advanced US //ˌdɛpəˈzɪʃən// UK //dˌɛpəsˈɪʃən// de·po·si·tion
n. the act of laying down a layer of material, such as dust or sediment, on a surface. In law, it is a formal written statement given under oath.
n. the process by which a substance settles or is laid down as a layer; in legal contexts, a formal written testimony given under oath.
Wind deposition built up the sand dunes.
The lawyer reviewed the deposition before the trial began.
Geologists studied the riverbed deposition to understand how the landscape changed over thousands of years.