1. (动物)流口水，垂涎
If an animal slavers, liquid comes from its mouth, for example because it is about to attack and eat something.

2. 兴奋地无法自制;狂喜
If you say that someone is slavering, you mean that they are so excited by something that they cannot control themselves, and that you find this disgusting.

1. someone who holds slaves

Synonym: slaveholderslave owner

2. a person engaged in slave trade

Synonym: slave dealerslave trader