understructure Definition

substructure, foot, fundament, foundation, base, groundwork, superstructure, bascule, falsework, truss bridge, prestressed, roadbed, bailey bridge, bascule bridge, undercarriage, plyboard, crossbeams, pilaster, corrugation, swage, jambs, crenellations, shimming, crosspieces, grillwork, bedplate, cantilevering, casements, weldment, pintle, tenons, aerofoils, bulkhead, piston rod, revetments, weatherboards, sponsons, davits, firebrick, subbase, brightwork, mullions, hex nut, corbels, rockwork, spandrels, midships, brickwork, stiffeners, lintels, nosepiece, abutments, strakes, treadles, fenders, railings, timberwork, sheave, pilings, bullnose, hatchway, hawsers, louvres, insulative, entablature, crankcases, soakaway, arches, exterior, deckhouse, tailpiece, plastron, floor joist, caissons, tensional, hoistway, waviness, gable roof, midship, sponson, fastenings, flexural, underbody, sill, balustrades, slabbing, lamella, paneling, trunnion, bargeboard, mansard, stonework, keyways, quoins, laths, skeg, transite, gunite, trusses, underdrain,