one-drop rule
one-drop rule · one-drop rules
The notion that one drop of black blood makes a person blackThe notion that one drop of black blood (i.e., any African ancestry at all) makes a person black.
Meaning
1 senses(US)The notion that one drop of black blood (i.e., any African ancestry at all) makes a person black.
Forms
plural: one-drop rulesWord family
1 related wordsRelatedmiscegenation