Acephali
Black's Law Dictionary · Henry Campbell Black, M.A. · 1910
Black's Law Dictionary
The levelers in the reign of Hen. I., who acknowledged no head or superior.
Leges H. 1; Cowell.
Also certain ancient heretics, who appeared about the beginning of the sixth century, and asserted that there was but one substance in Christ, and one nature. Wharton; Gibbon, Rom. Emp. ch.
47.