with obj.
1- wash and iron (clothes or linen)洗熨（衣物）：
he wasn't used to laundering his own bed linen
他不习惯自己洗烫床单等
as adj., with submodifier laundered freshly laundered sheets.新洗的床单。
1.1
- conceal the origins of (money obtained illegally) by transfers involving foreign banks or legitimate businesses洗（黑钱）。
1.2
- alter (information) to make it appear more acceptable篡改（信息）：
we began to notice attempts to launder the data retrospectively.
我们开始注意到修改旧数据的企图。
1
- a trough for holding or conveying water, especially (in mining) one used for washing ore（尤指采矿中用于清洗矿石的）洗槽。
1.1
- a channel for conveying molten metal from a furnace or container to a ladle or mould将熔融金属从熔炉或容器输送到铸勺或模具的流槽。
派生词
launderer
noun词源
Middle English (as a noun denoting a person who washes linen)： contraction of lavender, from Old French lavandier, based on Latin lavanda 'things to be washed'， from lavare 'to wash'.