1. 变稀薄;变淡：theory of probability概率论 | thin out 变稀薄;变淡 | This World 本界

2. 煤层薄：thin bed 薄层 | thin out 煤层薄 | thinner 冲淡剂

3. 稀薄：thimerosal 消毒液 | thin out 稀薄 | thin 薄的

4. 尖灭：thin out the crude 降低原油粘度 | thin out 尖灭 | thin porous streak 孔隙性薄层

1. -> see thin 11;thin 9

verb

1. lessen the strength or flavor of a solution or mixture

    e.g. cut bourbon

    Synonym: dilutethinreducecut

2. make sparse

    e.g. thin out the young plants

3. become sparser

    e.g. Towards the end of town, the houses thinned out