jamb /ˈʤæm/
側柱;旁柱;門方;壁爐兩側的石壁
Jamb n.
1. Arch The vertical side of any opening, as a door or fireplace; hence, less properly, any narrow vertical surface of wall, as the of a chimney-breast or of a pier, as distinguished from its face.
2. Mining Any thick mass of rock which prevents miners from following the lode or vein.
Jamb v. t. See Jam, v. t. & i.
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jamb
n : upright consisting of a vertical side member of a door or
window frame