Bible Encyclopedias
Quaternion

　　Quarternion

　　 Quarter´nion. A 'quaternion of soldiers' () was a detachment of four men, which was the usual number of a Roman night-watch. Peter, therefore, was guarded by four soldiers, two within the prison, and two outside the doors; and as the watch was usually changed every three hours, it was necessary that the 'four quaternions' mentioned in the text should be appointed for the purpose.