jamb /d͡ʒæm/noun 3verb 1forms 3 noun3 •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. •Any thick mass of rock that prevents miners from following the lode or vein. •Synonym of jambeau (“piece of armor for the leg”).The light of the moon gleamed on his steel helmet, his globular corslet, and the taces cuisses, or thigh pieces, and steel jambs which protected his legs. — 1889 verb1 •To fix or attach a jamb to. formsjambed · jambing · jambs
