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blood quantum

(US, sometimes, proscribed, sometimes, offensive) The fraction of a person's ancestors, out of their total ancestors, who are documented as full-blooded Native Americans.

ˈblʌd ˈkwɑntəm140 viewsLast reviewed Jun 29, 2026+ Add a definition
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#1·Apr 27, 2026

(US, sometimes, proscribed, sometimes, offensive) The fraction of a person's ancestors, out of their total ancestors, who are documented as full-blooded Native Americans.

Native blood quantum was introduced in 1705 at the Virginia Colony. If you were at least half Native, you didn’t have the same rights as white people. Blood quantum and tribal membership qualifications have since been turned over to indi…
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