formerly, in england, an officer nearly answering to the more modern bailiff of the hundred; also, an officer whose duty was to attend on the king, and on the lord high steward in court, to arrest traitors and other offenders. he is now called sergeant-at-arms, and two of these officers, by allowance of the sovereign, attend on the houses of parliament (one for each house) to execute their commands, and another attends the court chancery.-in a company, battery, or troop, a noncommissioned officer next in rank above a corporal, whose duty is to instruct recruits in discipline, to form the ranks, etc.-a lawyer of the highest rank, answering to the doctor of the civil law; -- called also serjeant at law.-a title sometimes given to the servants of the sovereign; as, sergeant surgeon, that is, a servant, or attendant, surgeon.-the cobia.