Negroid and Uncle Tom

Negroid noun - A person with dark skin who comes from Africa (or whose ancestors came from Africa).

Uncle Tom and negroid are semantically related. In some cases you can replace phrase "Uncle Tom" with "Negroid", this terms are similar.

Uncle Tom noun - (ethnic slur) offensive and derogatory name for a Black man who is abjectly servile and deferential to Whites.

Negroid and Uncle Tom are semantically related. You can use "Negroid" instead a noun phrase "Uncle Tom".