McGraw-Hill Dictionary of Engineering Second Edition

lay-upfusion, sublimation or vaporization) at constant L-C parallel-resonant circuits shunted by quartztemperature and pressure. { lātəŋt hēt } crystals. { ladəs filtər }latent heat of fusion See heat of fusion. { lātənt lattice girder [CIV ENG] An open girder, beam,¦hēt əv fyüzhən }or column built from members joined and bracedlatent heat of sublimation See heat of sublimation. by intersecting diagonal bars. Also known as{ lātənt ¦hēt əv səbləmāshən }open-web girder. { ladəs gərdər }latent heat of vaporization See heat of vaporization. lattice truss [CIV ENG] A truss that resembles{ lātənt ¦hēt əv vāpərəzāshən }latticework because of diagonal placement oflatent load [MECH ENG] Cooling required to rechords.members connecting the upper and lowermove unwanted moisture from an air-condilaunching{ ladəs trəs }tioned space. { lātənt lōd }[CIV ENG] The act or process of floattionedlateral [ENG] In a gas distribution or transmispleted;ing a ship after only hull construction is com-sion system, a pipe branching away from thein some cases ships are not launchedcentral, primary part of the system. { ladə until after all construction is completed.rəl }{ lȯnchiŋ }lateral compliance [ENG ACOUS] That characoflaunching cradle [CIV ENG] A framework madeteristic of a stylus based on the force requiredwood to support a vessel during launchingto move it from side to side as it follows the from sliding ways. { lȯnchiŋ krādəl }grooves of a phonograph record. { ladərəl launching ways [CIV ENG] Two (or more) setskəmplīəns }of long, heavy timbers arranged longitudinallylateral extensometer [ENG] An instrument under the bottom of a ship during building andused in photoelastic studies of the stresses on launching, with one set on each side, and slopinga plate; it measures the change in the thickness toward the water; the lower set, or ground ways,of the plate resulting from the stress at various remain stationary and support the upper set, orpoints. { ladərəl ekstensämədər }sliding ways, which carry the weight of the shiplateral flow spillway See side-channel spillway. after the shores and keel blocks are removed.{ ladərəl flō spilwā }{ lȯnchiŋ wāz }lateral recording [ENG ACOUS] A type of disk launder [ENG] An inclined channel or trough forrecording in which the groove modulation is parinmining and construction engineering or forthe conveyance of a liquid, such as for waterallel to the surface of the recording medium sothat the cutting stylus moves from side to side molten metal. { lȯndər }during recording. { ladərəl rikȯrdiŋ } Lauson engine [ENG] Single-cylinder enginelateral search See profiling. { ladərəl sərch } used in screening tests prior to the L-series lubelateral sewer [CIV ENG] A sewer discharging oil tests (such as L-1 or L-2 tests). { lau˙ zəninto a branch or other sewer and having no tribulawnmower[ELECTR] Type of radio-frequencyenjən }tary sewer. { ladərəl süər }lateral support [CIV ENG] Horizontal propping preamplifier used with radar receivers.applied to a column, wall, or pier across its [ENG] A helix-type recorder mechanism.smallest dimension. { ladərəl səpȯrt } [MECH ENG] A machine for cutting grass onlaterlog [ENG] A downhole resistivity measurelawof action and reaction See Newton’s third law.lawns. { lȯnmōər }ment method wherein electric current is forcedto flow radially through the formation in a sheet { lȯ əv akshən ən rēakshən }of predetermined thickness; used to measure the law of corresponding times [MECH] The princi-resistivity in hard-rock reservoirs as a method ple that the times for corresponding motions ofof determining subterranean structural features. dynamically similar systems are proportional to{ ladərläg } L/V and also to (L/G), where L is a typicallath [CIV ENG] 1. A narrow strip of wood used dimension of the system, V a typical velocity,in making a level base, as for plaster or tiles, or and G a typical force per unit mass. { ¦lȯ əvin constructing a light framework, as a trellis. kärə¦spändiŋ tīmz }2. A sheet of material used as a base for plas- law of electric charges [ELEC] The law that liketer. { lath }charges repel, and unlike charges attract. { lȯlathe [MECH ENG] A machine for shaping a əv i¦lektrik chärjəz }workpiece by gripping it in a holding device and law of electrostatic attraction See Coulomb’s law.rotating it under power against a suitable cutting { lȯ əv i¦lektrə¦stadik ətrakshən }tool for turning, boring, facing, or threading. law of gravitation See Newton’s law of gravitation.{lāth } { lȯ əv gravətāshən }lathing board See backup strip. { lathiŋ bȯrd } lay [DES ENG] The direction, length, or angle oflatrine [ENG] A toilet facility, either fixed or of twist of the strands in a rope or cable. { lā }a portable nature, such as is maintained undergroundlay off [ENG] The process of fairing a ship’s linesfor use by miners. { lətrēn } or an airplane’s in a mold loft in order to makelattice [CIV ENG] A network of crisscrossed molds and templates for structural units. { lāstrips of metal or wood. { ladəs } ¦ȯf }lattice filter [ELECTR] An electric filter consistinglay-up [ENG] Production of reinforced plasticsof a lattice network whose branches have by positioning the reinforcing material (suchas321