'Centurion' definitions:

Definition of 'centurion'

noun

(ancient Rome) the leader of 100 soldiers

From: GCIDE

Centurion \Cen*tu"ri*on\, n. [L. centurio, fr. centuria; cf. F. centurion. See Century.] (Rom. Hist.) A military officer who commanded a minor division of the Roman army; a captain of a century. [1913 Webster]
A centurion of the hand called the Italian band. --Acts x. 1. [1913 Webster]

Centurion a Roman officer in command of a hundred men (Mark 15:39, 44, 45). Cornelius, the first Gentile convert, was a centurion (Acts 10:1, 22). Other centurions are mentioned in Matt. 8:5, 8, 13; Luke 7:2, 6; Acts 21:32; 22:25, 26; 23:17, 23; 24:23; 27:1, 6, 11, 31, 43; 28:16. A centurion watched the crucifixion of our Lord (Matt. 27:54; Luke 23:47), and when he saw the wonders attending it, exclaimed, "Truly this man was the Son of God." "The centurions mentioned in the New Testament are uniformly spoken of in terms of praise, whether in the Gospels or in the Acts. It is interesting to compare this with the statement of Polybius (vi. 24), that the centurions were chosen by merit, and so were men remarkable not so much for their daring courage as for their deliberation, constancy, and strength of mind.", Dr. Maclear's N. T. Hist.