1. （使）脱瘾；（使）戒毒；（使）戒酒
If someone who is addicted to drugs or alcohol detoxifies, or if they are detoxified, they undergo treatment which stops them from being addicted.

2. 清除（体内）的毒素;（使）解毒;（使）排毒;
If you detoxify, or if something detoxifies your body, you do something to remove poisonous or harmful substances from your body.

3. 解除(有毒物质的)毒性
To detoxify a poisonous substance means to change it chemically so that it is no longer poisonous.

1. treat for alcohol or drug dependence

e.g. He was detoxified in the clinic

Synonym: detox

2. remove poison from

e.g. detoxify the soil

Synonym: detoxicate