L

Charles’/Hooke’s/Boyle’s law loi f de la conservation d’énergie law of conservation of

energy lointain adj far [distant] lois f,pl fondamentales des ventilateurs fan laws loisirs, base f de leisure or recreation centre long adj long long terme, à in the long term, long term [loan, etc] longeron m central girder [of a bridge], longitudinal

girder or member, stringer [structural, not staircase] longitude f longitude longitudinal adj longitudinal long-pan m long face or side [of a building, a roof plane] longrine f beam on grade, cross beam [linking piles],

foundation (tie) beam, ground beam, pile cap (beam) longueur f length [duration, space] longueur f d’ancrage anchorage length longueur f d’onde wavelength longueur f de fente crack length longueur f de flambement buckling length longueur f de l’arc arc length [in welding] longueur f de recouvrement lap length longueur f de serrage grip length longueur f hors-tout overall length longueur f limite maximum length longueur f totale overall length longueur f utile useful length loquet m latch [pivoted type, for a door, gate, etc] loqueteau m catch [door, shutter, cupboard, etc] loqueteau m magnétique magnetic catch losange, en forme de diamond adj [e.g. of a motorway

interchange] losange m flamand Flemish bond lot m bid, contract or work package, building plot, batch

[of materials, tools, etc], lot [at auction] lot m de terrain lot [plot of land] lotir vb parcel out [land] lotissement m housing estate or site, or its division into

plots lots m,pl séparés separate trades [contracting] louage m labour-only (sub-)contract loué adj rented louer vb let, rent loup m bad workmanship [piece of] lourd adj heavy louve f rag bolt or expanding fitting used for lifting a piece

of stone

loyer m rent lu et approuvé read and approved [in contract documents] lubrifiant adj lubricating adj lubrifiant m lubricant lubrification f lubrication lubrification f forcée forced lubrication lubrifier vb lubricate, oil lucarne f attic or dormer window, skylight [dormer] lucarne f à croupe hip(ped) dormer lucarne f à demoiselle dormer with backward sloping

roof lucarne f à deux pentes dormer with ridged roof lucarne f bombée eyebrow dormer lucarne f capucine hip(ped) dormer lucarne f en chien assis dormer with backward sloping

roof lucarne f en défoncé internal dormer lucarne f rampante shed dormer lucarne f retroussée dormer with backward sloping roof lueur f glow lumen m lumen lumière f countersinking for nut and bolt head, light,

mouth [of a plane] lumière f artificielle artificial light lumière f de contrôle pilot light lumière f du jour daylight lumière f électrique electric lighting lumière f naturelle natural light lumière f noire black light luminaire m light fitting or fixture, luminaire luminaire m encastré recessed fixture [light fitting] luminaire m extensif batwing [light fitting] luminaire m intensif downlighter luminance f brightness, luminance luminescence f luminescence luminescent adj luminescent lumineuse, intensité f luminous intensity lumineux adj illuminated [sign, etc], luminous, well-lit lumineux, flux m luminous flux luminosité f brightness, light [quality of], luminosity lunette f intersection of a minor and major road in a dip,

secondary vault piercing a barrel vault, telescope [of a theodolite]

lunette, coup m de observation or sighting [surveying] lunette f de visée sighting or surveyor’s telescope lunette f viseur sighting or surveyor’s telescope lunettes f,pl (à branches) spectacles lunettes f,pl de protection eye protectors, protective

glasses or goggles lunettes-loup f,pl goggles [protective] lunettes-masque f,pl goggles [protective] lustre f chandelier [ornamented], glaze coat [paintwork],

gloss, shine lustré adj glossy, shiny [paintwork] lustrer vb glaze [paintwork] lut m jointing mastic or paste luter vb seal with mastic or paste lux m lux lyre f de dilatation expansion loop

locaux lyre f de dilatation