0 a door made of material that cannot burn, used to prevent a fire from spreading within a building
1 a door made of material that cannot burn, which is used to prevent a fire from spreading within a building:
That a fire door may be effective, it must be hung to the only opening in the wall.
There are few parts in fire construction which are of so much importance, and generally so little understood, as fire doors.
Moghaddam built a prototype using a fire door.
Modern fire doors flank the first window on the first story.
Fire doors were fitted with improved ground floor and first floor access for visitors.
Two days before the fire a fire officer had found the fire door nailed up.
A fire door may be a good case in point.
If they have sprinklers installed, that may reduce costly fire door and escape requirements.
