| Subject | English | Spanish |
| coal. | acid clay | arcilla acida |
| coal. | activated clay | arcilla activada |
| met. | AFS standard clay | arcilla AFS |
| chem. | ball clay | tierra de alfareros |
| labor.org., chem. | ball clay | arcilla plástica |
| chem. | ball clay | arcilla grasa |
| chem. | ball clay | arcilla figulina |
| transp., construct. | bed of clay under the concrete | capa de arcilla bajo el hormigón |
| met. | bentonitic clay | arcilla bentonítica |
| coal. | binder clay | arcilla ligante |
| environ. | bleaching clay Clay capable of chemically adsorbing oils, insecticides, alkaloids, vitamins, carbohydrates and other materials; it is used for refining and decolorizing mineral and vegetable oils | arcilla blanqueadora |
| environ. | bleaching clay | arcilla blanqueadora |
| chem. | bleaching clay | tierra decolorante |
| coal. | bloating clay | arcilla inflante |
| coal. | bloating clay | arcilla dilatada |
| environ. | boulder clay | arcilla sílica |
| soil. | boulder clay | materiales de acarreo |
| life.sc. | boulder clay | limo de derrubios |
| earth.sc. | boulder clay | arcilla silícica |
| soil. | boulder clay | terreno errático |
| soil. | boulder clay | detritos acarreados |
| soil. | boulder clay | depósito glaciar |
| ceram. | brick clay | arcilla para ladrillos |
| chem. | calcined clay | chamota |
| industr. | calcined clay | arcilla de sílice calcinada |
| industr. | calcined clay | arcilla refractarias calcinada |
| industr. | calcined clay | tierra de chamota refractarias |
| industr. | calcined clay | chamota refractaria |
| industr. | calcined clay | arcilla calcinada |
| industr., construct. | castable clay | arcilla para colaje |
| soil. | cat clay | sapropel |
| tech. | china clay | arcilla de China |
| chem. | china clay | arcilla |
| pack. | china clay | caolín (tierra de o para porcelana) |
| earth.sc. | china-clay | caolín |
| earth.sc. | china clay | caolín |
| pack. | china clay | caolin |
| environ. | clay accumulation | fracción arcillosa |
| environ. | clay accumulation | formación de arcilla |
| environ. | clay accumulation | accumulaciòn de arcilla |
| agric., chem. | clay ball placement | localización del abono mediante bolas de arcilla |
| coal. | clay band | salbanda |
| soil. | clay bands | lamelas de arcilla |
| environ. | clay base mud | lodo arcilloso |
| chem. | clay bed | capa de arcilla |
| chem. | clay bed | capa de arcilla en cantera |
| chem. | clay bed | banco |
| industr., construct., chem. | clay bin | silo para arcilla |
| coal., chem. | clay body | pasta de arcilla |
| dril. | clay chemistry | química de arcillas |
| pack. | clay-coated enamel board | satinado |
| pack. | clay-coated enamel board | brillo (con caolin) |
| pack. | clay-coated enamel board | cartón revestido |
| pack. | clay-coated enamelled board | satinado |
| pack. | clay-coated enamelled board | brillo (con caolin) |
| pack. | clay-coated enamelled board | cartón revestido |
| pack. | clay-coated paper | esmaltado |
| pack. | clay-coated paper | papel couché |
| pack. | clay-coated paper | papel revestido (de caolín) |
| pack. | clay-coated paper | papel satinado |
| soil. | clay colloid | arcilla coloidal |
| health. | clay-colored | de color arcilloso |
| nat.sc., agric. | clay coloured weevil | otiorrinco (Otiorhyncus singularis, Otiorrhynchus picipes, Otiorrhynchus singularis) |
| entomol. | clay coloured weevil vine | otorrinco de la vid; Otiorrhynchus singularis (L.) |
| soil. | clay complex | complejo arcilloso |
| mech.eng. | clay cutter | cortador de arcilla |
| transp., construct. | clay digger | martillo azadón |
| industr., construct., chem. | clay dispersion | dilucion de la arcilla |
| chem. | clay dryer | secador de polvo |
| life.sc., agric. | clay enrichment | arcillizacion |
| gen. | clay filling | relleno de arcilla |
| soil. | clay film | película de arcilla |
| gen. | clay floor | suelo de barro |
| dril. | clay-fluid system | sistema de fluido-arcilla |
| environ. | clay formation | fracción arcillosa |
| environ. | clay formation | formación de arcilla |
| environ. | clay formation | accumulaciòn de arcilla |
| life.sc. | clay foundation | fondo de arcilla |
| environ. | clay fraction | accumulaciòn de arcilla |
| environ. | clay fraction | fracción arcillosa |
| environ. | clay fraction | formación de arcilla |
| soil. | clay fraction | fracción arcilla |
| coal. | clay gouge | salbanda |
| met. | clay-graphite mixture | plombagina |
| met. | clay-grog mortar | mortero de chamota |
| life.sc. | clay grouting | inyección de arcilla |
| nat.sc., chem. | clay-humus complex | complejo humus-arcilla |
| soil. | clay-humus complex | complejo arcillo-húmico |
| soil. | clay lamellae | lamelas de arcilla |
| soil. | clay loam | greda |
| soil. | clay loam | franco arcilloso |
| soil. | clay loam | terreno abarrancado |
| environ. | clay loam | franco-arcilloso |
| meteorol. | clay loam | marga arcillosa |
| soil. | clay loam soil | suelo franco arcilloso |
| gen. | clay mineral | mineral arcilloso |
| life.sc., agric. | clay mineral | minerales de la arcilla |
| life.sc., agric. | clay mineral | minerales arcillosos |
| soil. | clay mineral | mineral de la arcilla |
| dril. | clay mineral materials | materiales minerales arcillosos |
| gen. | clay mixed with straw | barro aligerado (con briznas) |
| soil. | clay mud | barro |
| mining. | clay other than kaolin not including expanded clays | arcillas salvo el aolín, excepto las arcillas dilatadas |
| hydrol. | clay pan | horizonte compacto arcilloso |
| life.sc., agric. | clay pan | capa de arcilla compacta |
| soil. | clay pan | tosca arcillosa |
| soil. | clay pan | capa de arcilla |
| gen. | clay panel | panel de barro |
| construct. | clay paver | ladrillos de pavimentación |
| gen. | clay percentage | fracción de arcilla |
| hobby | clay pigeon | plato de arcilla |
| hobby | clay pigeon projector | lanzaplatos |
| gen. | clay pigeon traps | tiro al pichón |
| gen. | clay pigeons targets | pichones de arcilla blancos de tiro |
| agric. | clay pipe | tubo de arcilla |
| coal. | clay pit | cantera de arcilla |
| dril. | clay platelet | laminilla de arcilla |
| gen. | clay powder | arcilla en polvo |
| gen. | clay powder | tierra arcillosa en polvo |
| nat.sc., chem. | clay pseudomorph | pseudomorfo arcilloso |
| mech.eng. | clay purifier | depurador de arcilla |
| gen. | clay rich soil | barro rico en arcilla |
| industr., construct., met. | clay room | cuarto de crisoles |
| industr., construct., met. | clay room | alfarería |
| soil. | clay schist | arcilla pizarrosa |
| soil. | clay schist | arcilla compacta estratificada |
| earth.sc. | clay schist | filita |
| soil. | clay schist | argilita |
| soil. | clay schist | arcilla esquistosa |
| nat.sc., chem. | clay separations | separaciones de arcilla |
| nat.sc., chem. | clay separations around pores | separaciones de arcilla alrededor de poros |
| nat.sc., chem. | clay separations around skeleton grains | separaciones de arcilla alrededor de granos del esqueleto |
| mech.eng. | clay shredder | distribuidor de arcilla |
| coal. | clay shredder | cortadora de arcilla |
| nat.sc., chem. | clay skin | pelicula de arcilla |
| tech., industr., construct. | clay slip | lechada de caolín |
| earth.sc., agric. | clay soil | textura arcillosa |
| earth.sc., agric. | clay soil | tierra arcillosa |
| earth.sc., agric. | clay soil | terreno arcilloso |
| earth.sc., agric. | clay soil | suelo arcilloso |
| life.sc., agric. | clay soil | tierra pesada |
| transp., construct. | clay spade | martillo azadón |
| coal. | clay stemming | relleno con arcilla |
| tech. | clay stone | piedra arcillosa |
| tech. | clay stone | arcilla endurecida |
| industr., construct., chem. | clay store | almacén de reposo |
| gen. | clay straw | barro aligerado (con briznas) |
| book.bind. | clay tablets | tablillas de arcilla |
| book.bind. | clay tablets | tablilla de arcilla |
| coal. | clay tamping | borra de arcilla |
| agric. | clay tile | tubo de arcilla |
| forestr. | clay till | suelo de laboreo arcilloso |
| chem. | clay-treated oil | aceite tratado con arcilla |
| meteorol. | clay-type soil | suelo arcilloso |
| ceram. | clay washing | lavado de la arcilla |
| dril. | clay-water mud | lodo base agua-arcilla |
| soil. | clay-water system | sistema arcilla-agua |
| soil. | cobbly clay loam | de textura franco-arcillosa con cantos rodados |
| met. | colloidal clay | arcilla coloidal |
| coal. | common clay | barro ordinario |
| gen. | cork rich clay mix | barro aligerado con corcho |
| life.sc., coal. | dispersive clay | arcilla dispersiva |
| gen. | disposal into clays | confinamiento en formaciones de arcilla |
| industr., construct. | dump for drying clay at pit | era de depósito en cantera |
| coal. | expanded clay | arcilla dilatada |
| coal. | expanded clay | arcilla inflante |
| industr., chem. | expanded clay | arcilla expandida |
| life.sc., coal. | expanding clay | arcilla expansiva |
| coal. | extraction of building materials and refractory clays | extracción de materiales de construcción y tierras para calcinar |
| life.sc., coal. | fat clay | arcilla gruesa |
| labor.org., chem. | fat clay | arcilla plástica |
| life.sc., coal. | fat clay | arcilla grasa |
| coal. | ferruginous clay | arcilla ferruginosa |
| coal. | fibrous clay | arcilla fibrosa |
| environ., industr. | filter clay | arcilla de filtración |
| gen. | fine clay plaster | enlucido fino con barro |
| gen. | fine clay render | enlucido fino con barro |
| life.sc. | finely laminated clay | arcilla laminada finamente |
| chem. | fire-clay | arcilla refractaria |
| life.sc., coal. | flocculated clay | arcilla floculada |
| construct. | floor of clay/cement mix | pavimento de baldosas de cemento |
| gen. | foamed clay | arcilla expandida |
| gen. | glacial clay | arcillas glaciales |
| soil. | gray tropical clay | arcilla gris tropical |
| chem. | Gross-Almerode clay | arcilla Gross-Almerode |
| gen. | hard clay | caolín duro |
| gen. | hard clay | arcilla dura |
| geol. | hard clay pan | capa de arcilla compacta |
| chem., construct. | heavy clay | ceramica basta |
| chem., construct. | heavy clay | ceramica gruesa |
| soil. | heavy clay soil | arcilla pesada |
| soil. | heavy clay soil | suelo arcilloso |
| chem., construct. | heavy clay product | ceramica de construccion |
| soil. | high clay activity | arcillas de alta actividad |
| soil. | illuvial clay | arcilla iluvial |
| earth.sc. | kaolin clay | caolín |
| earth.sc. | kaolinite clay | caolín |
| labor.org., chem. | kaolinitic clay | arcilla plástica |
| chem. | kaolinitic clay | arcilla caolinítica |
| life.sc., coal. | lacustrine clay | arcilla lacustre |
| coal. | lean clay | arcilla magra |
| gen. | light clay | tierra arcillosa aligerada |
| meteorol. | light clay fine | arcilla liviana fino |
| gen. | light clay block | adobe aligerado |
| gen. | light clay infill | relleno con tierra aligerada |
| gen. | light clay mixed with straw | barro aligerado con paja |
| gen. | light clay mortar | mortero de barro aligerado |
| gen. | light clay sprayed render | mortero proyectado de barro aligerado |
| gen. | light clay with mineral additives | mineral |
| gen. | light clay with mineral additives | tierra arcillosa aligerada |
| soil. | loamy clay | gredal |
| coal. | manganese-bearing clay | arcilla manganesifera |
| construct. | manufacture of clay products for constructional purposes | fabricación de materiales de construcción de tierras cocidas |
| coal. | marl clay | arcilla margosa |
| transp., construct. | masonry associated with hollow clay or concrete blocks | fábrica mixta de mampostería y ladrillos huecos o bloques de hormigón |
| soil. | mass ratio of clay to water | relación másica arcilla-agua |
| coal., chem. | memory of the clay | memoria de la arcilla |
| life.sc., chem. | Micaceous clay | Illita |
| life.sc., chem. | Micaceous clay | illita |
| life.sc., chem. | Micaceous clay | arcilla micácea |
| chem. | mild clay | arcilla suave |
| chem. | modeling clay | arcilla plástica |
| tech. | modeling clay | arcilla de modelar |
| gen. | modelling clay | arcilla para modelar |
| coal. | montmorillonitic clay | arcilla montmorillonitica |
| gen. | moraine clay | arcillas glaciales |
| life.sc., coal. | mottled clay | arcilla moteada |
| life.sc., coal. | mottled clay | arcilla abigarrada |
| met. | naturally clay-bonded sand | arena silicoaluminosa |
| tech. | oil based clay | arcilla con base de aceite |
| transp., construct. | ordinary clay | arcilla común |
| life.sc. | organic clay | arcilla orgánica |
| dril. | organophilic clay | arcilla organofílica |
| life.sc. | peat clay | limo orgánico |
| life.sc. | peat clay | arcilla turbosa |
| chem. | pipe-clay triangle | triángulo de arcilla plástica |
| labor.org., chem. | plastic clay | arcilla plástica |
| industr., construct. | plastic clay | arcilla plastica |
| agric. | plow bottom for sod and clay | cuerpo para roturar praderas |
| agric. | plow bottom for sod and clay | cuerpo para pastizales |
| earth.sc. | porcelain clay | caolín |
| pack. | porcelain clay | caolín (tierra de o para porcelana) |
| gen. | potters' clay raw material | materias primas para la cerámica |
| gen. | potters' clay | arcilla de alfarero |
| chem. | pottery clay | tierra de alfareros |
| cultur., life.sc. | pottery clay | arcilla arenosa |
| chem. | pottery clay | arcilla figulina |
| gen. | powdered clay | tierra arcillosa en polvo |
| gen. | prefabricated light clay panel | panel de barro aligerado |
| gen. | prefabricated light clay unit | panel de barro aligerado |
| life.sc. | puddled clay | arcilla batida |
| transp., construct. | puddled clay | capa comprimida |
| life.sc. | puddled clay | arcilla amasada |
| life.sc., coal. | residual clay | arcilla residual |
| construct. | rockfill dam with vertical clay core | presa de escollera con núcleo vertical |
| meteorol. | sandy clay coarse-fine | arcilla arenosa grueso-fino |
| soil. | sandy clay | arcillo arenoso |
| soil. | sandy clay soil texture class | suelo arcillo-arenoso |
| soil. | sandy clay loam soil texture class | suelo de textura franco-arcillo-arenosa |
| meteorol. | sandy clay loam | marga arcillosa arenosa |
| soil. | sandy clay loam | franco arcillo arenosa |
| meteorol. | sandy clay loam coarse-medium-fine | franco arcillo arenoso grueso-mediano-fino |
| soil. | sandy clay loam soil texture class | suelo franco arcillo-arenoso |
| coal. | semi-fat clay | arcilla semigrasa |
| food.ind., chem. | sepiolitic clay | arcilla sepiolítica |
| chem. | shale clay | arcilla esquistosa |
| earth.sc. | shaly clay | esquisto arcilloso |
| earth.sc. | shaly clay | arcilla esquistosa |
| soil. | silicate clay | silicato arcilloso |
| soil. | silicate clay | arcilla silicatada |
| soil. | siliceous clay | arcilla silícea |
| soil. | silt and clay | limo y arcilla |
| dril. | silted up by clay | llenado de limo con arcilla |
| soil. | silty clay | arcilla limosa |
| soil. | silty clay | suelo arcillo-limoso |
| meteorol. | silty clay loam | marga arcillosa limosa |
| soil. | silty clay loam | franco arcillo-limoso |
| soil. | silty clay loam | franco arcillo limoso |
| soil. | silty clay loam | suelo franco arcillo-limoso |
| dril. | smectite clay | arcilla esméctita |
| labor.org., chem. | soft clay | arcilla plástica |
| water.res. | soil, clay loam | suelo franco arcilloso |
| water.res. | soil, light clay | suelo arcilloso arcilla ligera |
| environ. | spent filter clays | Arcillas de filtración usadas |
| environ. | spent filter clays | arcillas de filtración usadas |
| coal. | stoneware clay | arcilla para grés |
| coal. | surface clay | arcilla explotada a cielo abierto |
| coal. | surface clay | arcilla de superficie |
| life.sc., coal. | swelling clay | arcilla expansiva |
| soil. | swelling clay | arcilla hinchable |
| dril. | swelling/non-swelling clays | arcillas hinchables/no hinchables |
| gen. | tempering of clay to improve workability | empantanar |
| gen. | tempering of clay to improve workability | almacenar en húmedo |
| gen. | timber strut ceiling which is to be filled in with light clay/straw | forjada de estacas con tierra aligerada |
| chem. | treatment with modified clay | tratamiento con arcilla modificada |
| chem. | treatment with natural clay | tratamiento con arcilla natural |
| soil. | tropical black clays | arcilla gris tropical |
| transp., construct. | unselected clay | arcilla común |
| life.sc., coal. | variegated clay | arcilla moteada |
| life.sc., coal. | variegated clay | arcilla abigarrada |
| life.sc. | varved clay | arcilla listada |
| life.sc. | varved clay | arcilla estratificada |
| mater.sc. | virtual clay modelling | modelización virtual con arcilla |
| environ. | waste sand and clays | Residuos de arena y arcillas |
| coal. | white-burning ball-clay | arcilla para loza |
| industr., construct. | white-burning clay | arcilla cociendo blanco |
| gen. | wood-chip clay | relleno de barro con virutas de madera |
| gen. | woodchip-light clay | barro ligero con virutas de madera |
| industr., construct. | yellow-burning clay | arcilla cociendo amarillo |
| dril. | yield of clays | rendimiento de las arcillas |
