| Subject | English | Spanish |
| construct. | active arch | bóveda activa |
| med. | alignment of dental arch | alineamiento del arco dental |
| med. | anterior carpal arch | red carpal anterior |
| med. | anterior width of zygomatic arch | amplitud anterior del ángulo del arco cigomático |
| life.sc. | anti-crepuscular arch | arco anticrepuscular |
| life.sc. | anti-twilight arch | arco anticrepuscular |
| med. | aortic arch syndrom | enfermedad sin pulso |
| med. | aortic arch syndrom | síndrome del arco aòrtico |
| med. | aortic arch syndrome | anomalía del arco aórtico |
| scient. | arch axis | directriz del arco |
| construct. | arch barrel | bóveda inclinada |
| construct. | arch beam | viga en arco |
| gen. | arch breaker | rompebóvedas |
| gen. | arch breaker | nivelador |
| met., construct. | arch brick | ladrillo de boveda |
| industr., construct. | arch brick | ladrillo recocho, demasiado cocido |
| construct. | arch bridge with suspended deck | arco con pasadera suspendida |
| construct. | arch buttress dam | presa de contrafuertes de planta curva |
| construct. | arch center | cercha |
| transp., construct. | arch center for crest | centro del arco de la coronación |
| construct. | arch centering | cimbra |
| construct. | arch centre | cercha |
| transp. | arch culvert | alcantarilla en bóveda |
| el., construct. | arch dam | presa bóveda |
| el.gen. | arch dam | presa de bóveda |
| el., construct. | arch dam | presa arco |
| transp., construct. | arch elevation | cota del arco superior |
| transp. | arch, encastré | arco empotrado |
| mech.eng. | arch girder | puente de carro interior |
| construct. | arch girder | viga en arco |
| construct. | arch-gravity dam | presa de arco gravedad |
| coal. | arch joint | ensamblaje de los cuadros |
| met. | arch of a furnace | bóveda de un horno |
| med. | arch of Corti | arco de Corti |
| footwear | arch of the foot | arco del pie |
| transp. | arch panel | panel de arco |
| crim.law., life.sc. | arch pattern | diseño digital tipo arco |
| construct. | arch rise | flecha del arco |
| coal. | arch set | marcos |
| industr., construct., chem. | arch-shaped cutting | corte en arcos |
| industr., construct., chem. | arch-shaped cutting | corte en arcadas |
| med. | arch-shaped orthodontic apparatus | aparato de ortodoncia en forma de arco |
| med. | arch-shaped orthodontic appliance | aparato de ortodoncia en forma de arco |
| transp., construct. | arch span | separación interior entre los contrafuertes |
| transp., construct. | arch span | luz de la bóveda |
| transp., construct. | arch springing line impost | arranque de bóveda |
| transp., construct. | arch stone | dovela |
| industr., construct. | arch support | cambrillón |
| med. | arch-support device | mecanismo de soporte del arco |
| gen. | arch supports for boots and shoes | resortes para curvaturas de calzados |
| gen. | arch supports for boots and shoes | resortes para curvaturas de zapatos |
| gen. | arch supports for boots and shoes | resortes para curvaturas de calzado |
| transp., construct. | arch thrust | empuje horizontal |
| transp., construct. | arch thrust | empuje del arco |
| construct. | arch truss | viga en arco |
| transp. | arch tube | tubo de bóveda |
| transp. | arch tube | tubo de arco |
| construct. | articulated arch | arco articulado |
| construct. | back arch | arco inverso |
| coal. | backfilling behind arches | relleno por detrás de la entibación en arcos |
| coal. | backfilling behind arches | rellenado detrás de los cuadros |
| industr., construct., met. | bearer arch | arco de cámara |
| industr., construct., met. | bearer arch | arquillo |
| industr., construct., met. | bearer arch | arco |
| med. | bends of the orthodontic arch | curvas de orientación |
| transp., construct. | blunt arch | trespuntado |
| med. | branchial arch | arco branquial |
| med. | breadth-length index of the dental arch | índice de amplitud y longitud del arco dental |
| med. | breadth-length index of the frontal dental arch | índice de amplitud y longitud del arco dental frontal |
| transp. | canopy arch | arco de vidriera |
| transp. | canopy arch | arco de cúpula |
| med. | cartilages of branchial arches | cartílagos de los arcos branquiales |
| med. | Case double arch | doble arco de Case |
| industr., construct., chem. | cavity arch | doble boveda |
| industr., construct., chem. | cavity-arch cooling | enfriamiento indirecto |
| transp., construct. | central angle of arch | ángulo del arco |
| transp., construct. | central angle of arch | amplitud del arco |
| transp., construct. | circular arch | bóveda circular |
| med. | cleft of vertebral arches | fisura vertebral |
| transp., construct. | constant angle arch dam | presa de bóveda de ángulo constante |
| construct. | constant radius arch dam | presa bóveda de radio constante |
| construct. | constant radius arch dam | presa bóveda de centro constante |
| construct. | constant thickness arch dam | presa bóveda de espesor constante |
| life.sc. | crepuscular arch | arco crepuscular |
| transp., construct. | crown of arch | clave de un arco |
| transp., construct. | crown of arch | clave de la bóveda |
| med. | crural arch | ligamento de Falopio (ligamentum inguinale) |
| med. | crural arch | arco femoral (ligamentum inguinale) |
| med. | crural arch | arco de Falopio (ligamentum inguinale) |
| med. | crural arch | ligamento de Poupart (ligamentum inguinale) |
| med. | crural arch | arco crural (ligamentum inguinale) |
| construct. | cylindrical arch dam | presa bóveda cilíndrica |
| construct. | deck in the shape of a flat arch | zona de paso de un arco rebajado |
| med. | dental arch expander | extensor del arco dentario |
| construct. | double curvature arch dam | presa de doble curvatura |
| transp., construct. | drop arch | trespuntado |
| industr., construct., chem. | drop-arch | rebajamiento de la bóveda |
| transp., construct. | elliptical arch | bóveda elíptica |
| construct. | elliptical arch dam | presa bóveda elíptica |
| chem., el. | end-arch brick | cuña |
| transp. | engine support arch | arco de apoyo del motor |
| med. | expansion arch | arco de expansión |
| med. | Fallopian arch | ligamento de Poupart (ligamentum inguinale) |
| med. | Fallopian arch | arco de Falopio (ligamentum inguinale) |
| med. | Fallopian arch | ligamento de Falopio (ligamentum inguinale) |
| med. | Fallopian arch | arco femoral (ligamentum inguinale) |
| med. | Fallopian arch | arco crural (ligamentum inguinale) |
| med. | femoral arch | arco femoral (ligamentum inguinale) |
| med. | femoral arch | arco de Falopio (ligamentum inguinale) |
| med. | femoral arch | ligamento de Poupart (ligamentum inguinale) |
| med. | femoral arch | ligamento de Falopio (ligamentum inguinale) |
| med. | femoral arch | arco crural (ligamentum inguinale) |
| med. | fissure of vertebral arches | fisura vertebral |
| construct. | fixed ended arch | arco empotrado |
| med. | flat anterior arch | arco dentario plano |
| industr., construct., met. | flat arch | bóveda plana |
| industr., construct., met. | flying arch | bóveda rebajada |
| life.sc., construct. | foundation arch | arco de fundación |
| med. | front teeth arch | arco dentario frontal |
| chem. | furnace arch | bóveda del horno |
| ichtyol. | gill arch | arco branquial |
| med. | glossopalatine arch | pilares anteriores del paladar |
| med. | glossopalatine arch | arco glosopalatino |
| life.sc., construct. | gravity arch dam | dique curvilineo |
| med. | Hammond wire-arch splint | férula de arco de Hammond |
| scient. | height of an arch | flecha |
| construct. | height of arch | flecha del arco |
| construct. | hinged arch | arco articulado |
| construct. | hingeless arch | arco empotrado |
| med. | horizontal arch | arco horizontal |
| transp., construct. | horizontal arch element | anillo horizontal |
| med. | hyoid arch | cartílago de Reichert |
| med. | hyoid arch | arco hioideo |
| med. | hyoid arch | segmento quératobranquial |
| med. | hyoid arch | segmento epibranquial |
| med. | hyoid arch | segmento hipobranquial |
| med. | hyoid arch | segmento estilohioideo |
| med. | hyoid arch | segmento faringobranquial |
| med. | hyoid arch | cartílago hioideo |
| construct. | inclined arch | arco inclinado |
| construct. | inclined arch | arco en desplome |
| construct. | inclined barrel arch | bóveda inclinada |
| transp., construct. | included angle of arch | ángulo del arco |
| transp., construct. | included angle of arch | amplitud del arco |
| construct. | independent arch | arco independiente |
| med. | index of plantar arch | índice del arco plantar |
| med. | index of plantar arch | índice del arco plantar de Bragard |
| med. | index of plantar arch Bragard | índice del arco plantar de Bragard |
| med. | index of plantar arch Bragard | índice del arco plantar |
| forestr. | integrated arch | arco integrado |
| industr., construct., met. | jack arch | bóveda plana |
| med. | labial arch | arco labial |
| med. | Langer's axillary arch | arco de Langer |
| med. | Langer's axillary arch | arco axilar |
| med. | lateral part of the longitudinal arch of the foot | parte lateral del arco longitudinal del pie (pars lateralis arcus longitudinalis pedis) |
| construct. | latticed arch | arco de celosía |
| med. | lingual-arch lock | fijación Mershon |
| industr., construct., chem. | lintel arch | bóveda de la boca de carga |
| construct. | logarithmic spiral arch dam | presa bóveda de espiral o logarítmica |
| agric., mech.eng. | logging arch | arco de madereros |
| industr., construct., met. | main arch | bóveda |
| med. | major arch | arco mayor |
| med. | medial part of the longitudinal arch of the foot | parte medial del arco longitudinal del pie (pars medialis arcus longitudinalis pedis) |
| med. | median-sagittal glabellar arch | arco mediosagital glabellar |
| med. | Menard-Shenton arch | línea de Menard-Shenton |
| med. | minimum width of zygomatic arch | amplitud mínima del ángulo del arco cigomático |
| construct. | multi-centred arch | arco de varios centros |
| construct. | multi-centred arch dam | presa bóveda de varios centros |
| construct. | multifoil arch | arco polilobulado |
| construct. | multiple arch dam | presa de bóvedas múltiples |
| med. | palatoglossus arch | arco glosopalatino |
| med. | palatoglossus arch | pilares anteriores del paladar |
| med. | palatopharyngeal arch | arco faringopalatino |
| construct. | parabolic arch | bóveda parabólica |
| construct. | parabolic arch dam | presa bóveda parabólica |
| med. | pedicle of vertebral arch | pedículo vertebral (collum arcus vertebrarum) |
| industr., construct., met. | pillar arch | bóveda |
| industr., construct., met. | pillar arch | arcada |
| med. | pitcher appearance of zygomatic arches | radiografía de la arcada cigomática |
| industr., construct. | plantar arch | arco |
| industr., construct., met. | port arch | bóveda del quemador |
| industr., construct., met. | port arch | bóveda del conducto |
| med. | posterior carpal arch | red carpal posterior |
| med. | posterior width of zygomatic arch | amplitud posterior del ángulo del arco cigomático |
| industr., construct., met. | pot arch | horno para cocer crisoles |
| industr., construct., met. | pot arching | cocción del crisol |
| coal. | pressure arch theory | teoría de la presión de arco |
| med. | prolongation of dental arch | alineamiento del arco dental |
| med. | pulmonary arch | arco pulmonar |
| mater.sc., construct. | quay wall on arches | muelle de apoyos aislados |
| transp., construct. | reinforced concrete arch | arco de hormigón armado |
| med. | ribbon arch of E.H.Angle | arco de Angle |
| industr., construct., met. | rider arch | arco |
| industr., construct., met. | rider arch | arquillo |
| industr., construct., met. | rider arch | arco de cámara |
| coal. | rigid arch | cuadro rígido |
| med. | Riolan's arch | arco de Riolano |
| construct. | roof arch | cercha de techo |
| construct. | roof arch | cercha de pabellón |
| med. | root of vertebral arch | pedículo del arco vertebral |
| industr., construct., met. | saddle arch | arco de cámara |
| industr., construct., met. | saddle arch | arco |
| industr., construct., met. | saddle arch | arquillo |
| construct. | sagging of the arch | depresión de la bóveda |
| scient., construct. | segmental arch | arco rebajado |
| scient., construct. | segmental arch | arco escarzano |
| scient., construct. | semi-circular arch | arco de medio punto |
| industr., construct., met. | shadow arch | bóveda rebajada |
| med. | Shenton's arch | línea de Shenton |
| med. | Shenton's arch | arco de Shenton |
| chem., el. | side-arch brick | cuchillo |
| construct. | single curvature arch dam | presa bóveda de simple curvatura |
| construct. | solid web arch | arco de alma llena |
| construct. | spandrel-braced arch bridge | puente en arco con tablero superior |
| transp., construct. | springing of arch | arranque de bóveda |
| coal. | steel arch | cuadro metálico |
| coal. | steel arch | arco metálico |
| transp., construct. | stilted arch | arco peraltado |
| coal. | strutting of arch supports | arriostrar |
| med. | stylohyoid arch | segmento epibranquial |
| med. | stylohyoid arch | segmento hipobranquial |
| med. | stylohyoid arch | segmento faringobranquial |
| med. | stylohyoid arch | segmento estilohioideo |
| med. | stylohyoid arch | segmento quératobranquial |
| fin. | summit of the Arch | cumbre del Arco |
| fin. | summit of the Arch | cumbre de París |
| mater.sc., mech.eng. | support arch | anillo de elevación |
| med. | teeth outside the dental arch | malposición dentaria |
| construct. | thick arch dam | presa de arco |
| construct. | thick arch dam | presa de bóveda |
| construct. | thick arch dam | gruesa |
| construct. | thin arch dam | presa de bóveda delgada |
| construct. | three-hinged arch | arco de tres articulaciones |
| construct. | three-pinned arch | arco triarticulado |
| transp., construct. | thrust of the arch | empuje del arco |
| transp., construct. | thrust of the arch | empuje horizontal |
| construct. | tied arch | cuerda del arco |
| construct. | tied arch | arco con tirante |
| construct. | tied arch bridge | puente en arco con tablero colgante |
| construct. | tied-through arch | cuerda del arco |
| tech. | timbrel arch | arco de varias roscas de rasillas |
| tech. | timbrel arch | arco de varias capas de tejas planas |
| industr., construct., met. | tongue arch | separación gas/aire |
| industr., construct., met. | tongue arch | lengüeta del quemador |
| agric., tech. | tractor-arch unit | arco de arrastre para tractor |
| agric., tech. | tractor-arch unit | arco de arrastre de troncos |
| agric., tech. | tractor-arch unit | arco de arrastre |
| forestr. | trailing arch | arrastradora de ruedas |
| forestr. | trailing arch | trinquival |
| forestr. | trailing arch | puente de arrastre |
| forestr. | trailing arch | arco de arrastre |
| med. | Treitz's arch | arco de Treitz |
| construct. | trussed arch | arco de celosía |
| dril. | tubing guide arch | arco guía de la tubería |
| construct. | tubular arch bridge | puente de arco tubular |
| life.sc. | twilight arch | arco crepuscular |
| construct. | two-hinged arch | arco biarticulado |
| construct. | variable curvature arch | arco de curvatura variable |
| construct. | variable radius arch dam | presa bóveda de centro variable |
| construct. | variable radius arch dam | presa bóveda de radio variable |
| construct. | variable thickness arch dam | presa bóveda de espesor variable |
| med. | visceral arch | arco branquial |
| transp., construct. | watertight facing arch | bovedilla impermeable |
| transp. | water-tube arch support | tubo de bóveda |
| transp. | water-tube arch support | tubo de arco |
| tech. | wheel arch | paso de rueda |
| med. | width of zygomatic arch | diámetro bicigomático |
| coal. | yielding arch | cuadro semirrígido |
| coal. | yielding arches | sostenimiento deslizante |
| med. | zygomatic arch | arco zigomàtico |
