What's the difference between acephali and acephalia?

Acephali

Definition:

• (n. pl.) A fabulous people reported by ancient writers to have heads.
• (n. pl.) A Christian sect without a leader.
• (n. pl.) Bishops and certain clergymen not under regular diocesan control.
• (n. pl.) A class of levelers in the time of K. Henry I.

Example Sentences:

• (1) A hypothesis about the frequency of the association between acephaly and acardy is proposed.
• (2) Three cases of monozygous male twins having exencephaly, anencephaly, and acephaly, with their cotwins being normal, are reported.
• (3) Similarly the adrenal gland hypoplasia does not depend upon the absence of the pituitary gland due to the concurrent condition of acephaly.

Acephalia

Definition:

Example Sentences:

• (1) Among the cases of fetal malformation, the following malformations were observed to occur at a higher rate of incidence: acephalia, exencephaly, cerebral hernia, open eyelid, cleft palate, micromelia, ankylosis of the extremity, club foot and skeletal anomalies.