ar·met 
(ärmĕt′)
(ärmĕt′)n.
A late-medieval light helmet with a neck guard and movable visor.
[Old French, alteration (influenced by Old Italian elmetto, helmet) of arme, weapon; see ARM2.]
- open
- open-access
- open admissions
- open adoption
- open-air
- open-and-shut
- open-ballot voting
- open chain
- open city
- open classroom
- open cluster
- open court
- open door
- open-door
- open-end
- open-ended
- open-endedly
- open-endedness
- open-end investment company
- open-end wrench
- open enrollment
- opener
- open-eyed
- open eyes
- open-faced