master-at-arms

mas·ter-at-arms (mstr-t-ärmz)

n. pl. mas·ters-at-arms (mstrz-)

A petty officer assigned to maintain order.

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master-at-arms

n pl masters-at-arms

(Transport / Nautical Terms) the senior rating, of Chief Petty Officer rank, in a naval unit responsible for discipline, administration, and police duties

Thesaurus

Noun

1.

master-at-arms - the senior petty officer; responsible for discipline aboard ship P.O., petty officer, PO - a noncommissioned officer in the Navy or Coast Guard with a rank comparable to sergeant in the Army