| Subject | English | Spanish |
| earth.sc., el. | atomic radius | radio atómico |
| transp., construct. | average radius | radio medio |
| IT, el. | back radius | radio del borde posterior |
| transp. | bend radius | radio de curvatura |
| transp., mater.sc. | bend relief radius | radio de despojado en plegado |
| transp., mech.eng. | bending punch radius | radio del punzón de plegar |
| el. | bending radius | radio de curvatura |
| transp. | bilge radius | curva del pantoque |
| el. | bottom radius | radio de fondo del surco |
| industr., construct. | buff radius | radio de pulimentación |
| gen. | channel radius | radio del canal |
| med. | chin radius | distancia gnatión-línea biauricular |
| transp., mater.sc. | clamp radius | radio de mordaza |
| transp., mater.sc. | clamp radius | radio de pinza |
| transp., mater.sc. | clamp radius | radio de brida |
| mech.eng. | connecting radius | radio de unión |
| construct. | constant radius arch dam | presa bóveda de radio constante |
| construct. | constant radius arch dam | presa bóveda de centro constante |
| earth.sc., mech.eng. | crank radius | radio del cigüeñal |
| scient., construct. | crest radius | radio de coronación |
| med. | crista interossea radii | cresta interósea del radio |
| el. | critical radius | radio crítico |
| transp., industr., construct. | crown radius | radio de curvadura |
| industr., construct. | crown radius | radio de la banda de rodamiento |
| transp., avia. | cruising radius | radio de acción en crucero |
| nat.sc., agric. | cruising radius | radio de desplazamiento |
| med. | cupula radii | cúpula del radio (fovea capituli) |
| med. | cupula radii | cavidad glenoidea del radio (fovea capituli) |
| med. | cupula radii | cúpula glenoidea del radio (fovea capituli) |
| IT | curvature radius | radio de curvatura |
| transp. | curve of constant radius | curva de radio constante |
| transp. | curve of constant radius | curva circular |
| transp. | curve of small radius | curva de pequeño radio |
| transp. | curve of wide radius | curva de gran radio |
| agric. | curve radius | radio de viraje |
| agric. | curve radius | radio de giro |
| met. | curved large radius sleeker | alisador combado |
| earth.sc., mech.eng. | cutting radius | radio de corte |
| gen. | destruction radius | radio de destrucción |
| met. | double ended radius sleeker | buril vaciado |
| transp., construct. | downstream radius of crest | radio aguas abajo de la coronación |
| environ. | drainage radius | zona de dragado |
| med. | Duplay osteotomy of radius | osteotomía del radio de Duplay |
| earth.sc. | effect of finite Larmor radii | efecto de los radios finitos de Larmor |
| el. | effective Earth-radius factor | coeficiente de radio ficticio terrestre equivalente |
| el. | effective radius of curvature | radio de curvatura efectivo |
| el. | effective stylus tip radius | radio efectivo de la aguja de lectura |
| life.sc., construct. | equilibrium radius of influence | radio de influencia de equilibrio |
| el. | first Fresnel zone radius | radio de la primera zona de Fresnel |
| nat.sc. | Gaussian radius | radio medio de curvatura |
| nat.sc. | Gaussian radius | radio de Gauss |
| phys.sc. | gyration radius | radio de giro |
| phys.sc. | gyro radius | radio giromagnético |
| phys.sc. | gyromagnetic radius | radio giromagnético |
| med. | head of radius | cabeza del radio |
| life.sc., construct. | hydraulic radius | radio hidráulico |
| met. | keyhole notch with a root radius of l mm | entalladura en forma de cerradura con un radio de curvatura en el fondo de la entalladura de 1 mm |
| tech. | land radii | radios terrestres |
| transp. | large-radius curve | curva de gran radio |
| phys.sc. | Larmor radius | radio de Larmor |
| earth.sc. | larmor radius instability | inestabilidad de órbita finita |
| scient., transp. | leading edge radius | radio de borde de ataque |
| gen. | Lethal Radius | radio letal |
| el. | mean earth radius | radio medio de la Tierra |
| transp., construct. | mean radius | radio medio |
| nat.sc. | mean radius of curvature | radio medio de curvatura |
| transp., construct. | minimal curve radius | radio de curvatura mínimo |
| IT | minimum bend radius | radio de curvatura mínimo |
| earth.sc. | minimum bend radius | radio mínimo de plegado |
| transp. | minimum horizontal turn radius | radio mínimo de giro |
| transp. | minimum radius within curves | radio mínimo de inscripción en curva |
| transp. | minimum vertical crest radius | radio mínimo de curvatura vertical en cresta |
| transp. | minimum vertical dip radius | radio mínimo de curvatura vertical en valle |
| transp. | mission radius | radio de acción |
| transp. | mission radius | alcance en misión |
| med. | muscle pronator radii teres | músculo pronador redondo |
| med. | muscle supinator radii brevis | músculo supinador corto |
| med. | neck of radius | cuello del radio |
| transp. | nominal radius of steering control | radio nominal del mando de dirección |
| med. | occipital radius | radio occipital |
| transp. | operating radius | radio de acción de un vehículo motor |
| industr., construct., chem. | outside radius corner | ángulo redondeado |
| industr., construct., chem. | outside radius corner | esquina redondeada |
| earth.sc. | plasma minor radius | radio menor del plasma |
| earth.sc. | plasma radius | radio del plasma |
| tech. | radii-forming machine | máquina para formar curvas de unión entre dos superficies |
| industr., construct., chem. | radius corner | esquina redondeada |
| industr., construct., chem. | radius corner | ángulo redondeado |
| met. | radius faced tip of an electrode spherical | extremo abombado del electrodo |
| met. | radius faced tip of an electrode spherical | extremo esférico del electrodo |
| el. | radius ferrule | casquillo radial |
| earth.sc. | radius gauge | calibre de radios |
| transp. | radius of curvature | radio de curvatura |
| life.sc. | radius of curvature in a normal section | radio de curvatura en una sección normal |
| life.sc. | radius of curvature in a normal section | radio de curvatura de una paralela |
| construct. | radius of curvature of deflection | radio de curvatura de la deflexión |
| mech.eng. | radius of drum | radio del tambor |
| transp., construct. | radius of extrados | radio del extradós |
| transp., mater.sc. | radius of gyration | radio de inercia |
| phys.sc. | radius of gyration | radio de giro |
| transp., mater.sc. | radius of inertia | radio de inercia |
| earth.sc., life.sc. | radius of influence | radio de influencia |
| transp., construct. | radius of intrados | radio del intradós |
| gen. | radius of nuclear reaction channel | radio del canal |
| tech., met. | radius of rounding of supports | radio de curvatura de los puntos de apoyo |
| transp., construct. | radius of soffit | radio del intradós |
| transp., mech.eng. | radius of turning circle | diámetro del giro |
| transp., mech.eng. | radius of turning circle | círculo de la vuelta |
| transp., mech.eng. | radius of turning space | radio de viraje |
| transp., mech.eng. | radius of turning space | radio del giro |
| transp., mech.eng. | radius of turning space | espacio del viraje |
| mech.eng. | radius reach | radio de trabajo |
| transp., met. | radius runout | fin de radio |
| industr., construct. | radius/thickness ratio | relación radio/espesor |
| life.sc. | radius vector | radio vector |
| health. | reverberation radius | radio de reverberación |
| scient., transp. | root radius | raíz de fondo de rosca |
| transp. | rotor radius | radio del rotor |
| nat.sc. | Schwarzschild radius | radio de Schwarzschild |
| IT, el. | second radius | radio segundo |
| med. | shaft of radius | cuerpo del radio |
| industr., construct. | shoulder radius | radio del hombro |
| industr., construct. | shoulder radius | radio del espaldón |
| IT | small bend radius duct cable | cable para instalar en conductos con pequeño radio de curvatura |
| transp. | small-radius curve | curva de pequeño radio |
| tech., met. | smallest bending radius permitted | el mínimo radio de curvatura permitido |
| transp., avia. | sortie radius | radio de acción |
| mech.eng. | spherical radius | carrera completa de elevación |
| transp., mech.eng. | standard radius | radio tipo |
| met. | straight large radius sleeker | alisador recto de gran radio |
| met. | stylus cone angle and tip radius | ángulo de la punta y radio de curvatura de la aguja del palpador |
| commun. | synchronous orbital radius | radio de la órbita geosincrónica |
| mech.eng. | throat radius | radio de garganta |
| met. | top edge radius | radio de redondeado del borde superior de un corte |
| met. | top edge radius | radio de redondeado de la arista |
| transp., industr., construct. | tread radius | radio de curvadura |
| life.sc., el. | true earth radius | radio verdadero de la Tierra |
| med. | tuber radii | tuberosidad bicipital (tuberositas radii) |
| med. | tuber radii | tuberosidad radial (tuberositas radii) |
| transp. | turn radius | radio de viraje |
| transp. | turning radius | radio de giro |
| transp., mech.eng. | turning radius | diámetro del giro |
| agric. | turning radius | radio de viraje |
| transp., construct. | upstream radius of crest | radio aguas arriba de la coronación |
| construct. | variable radius arch dam | presa bóveda de radio variable |
| agric., tech. | variable-radius method | método de conteo angular |
| transp. | wheel turning radius | radio de rodadura de la rueda |
| transp., mater.sc. | winding radius | radio de arrollamiento |
| mech.eng. | working radius | radio de trabajo |
| mech.eng. | working radius | radio de acción |
