plural of acephalus / A people reported by Herodotus and Josephus to have no heads or removable heads.

The congenital lack of a head (especially in a parasitic twin)

(obsolete) One who acknowledges no head or superior

plural of acephalist

Without a head. / (medicine, of a headache, dated) Characterized by a migraine aura without pain. / Without a leader.

(medicine) A birth defect in which the head is absent

Of or pertaining to the parasitic protozoans of the suborder Acephalina

The congenital lack of a head.

(historical) A Paulician, a member of an early gnostic Christian heresy.

plural of Acephalite