/ ˌdepəˈzɪʃn; NAmE / noun
1.
[ U , C ] ( technical ) the natural process of leaving a layer of a substance on rocks or soil; a substance left in this way :
marine / river deposition
2.
[ U , C ] the act of removing sb, especially a ruler, from power :
the deposition of the King
3.
[ C ] ( law ) a formal statement, taken from sb and used in court
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WORD ORIGIN
late Middle English : from Latin depositio(n-) , from the verb deponere to lay aside .