Either of the vertical components that form the side of an opening in a wall, such as that of a door frame, window frame, or fireplace.
Synonym of jambeau (“piece of armor for the leg”).
Any thick mass of rock that prevents miners from following the lode or vein.
To fix or attach a jamb to.
A horizontal structural beam spanning an opening, such as between the uprights of a door or a window, and which supports the wall above.