(n.) A traversing base frame, or movable railway, along which the carriage of a barbette or casemate gun moves backward and forward. [See Gun carriage.]

backing base baseboard basement bearing bushing cabinet cadre case casement casing console dado doorframe fabric foot footing foundation frame framework framing housing infrastructure keel lattice latticework mopboard mount mounting nadir picture frame radio radio receiver radio set radio telescope receiver receiving set sash set setting shell shoemold skeleton sole toe underframe wainscot window case window frame wireless wireless set