| there's no fool like an old fool | la cabeza blanca y el seso por venir |
| there's no place like home | mi casa y mi hogar cien doblas val |
| thereabout | aproximadamente |
| thereabouts | aproximadamente |
| thereafter | después |
| thereby | por lo tanto |
| therefore | luego |
| therein | en eso |
| thereinafter | despues |
| thereof | de eso |
| Theres | Teres I |
| Theresa of Avila | La Abulense |
| Therese Neumann | Teresa Neumann |
| thereto | a eso |
| thereupon | luego |
| Theria | Theria |
| Theriodont | Theriodontia |
| Theriodontia | Theriodontia |
| Therizinosaur | Therizinosauroidea |
| Therizinosaurus | Therizinosaurus |
| Thermaic Gulf | Golfo de Tesalónica |
| thermal | termal |
| Thermal camera | Cámara térmica |
| Thermal Design Power | Thermal Design Power |
| Thermal element | Termopar |
| Thermal energy storage | Almacenamiento de calor |
| thermal equipment | equipo térmico |
| Thermal history | Historia térmica |
| Thermal imaging device | Cámara infrarroja |
| thermal power plant | central térmica |
| Thermal property | Propiedad térmica |
| Thermal structure | Estructura térmica |
| Thermal transfer | Transferencia de calor |
| Thermal treatment | Tratamiento térmico |
| Thermal wind | Viento térmico |
| Thermaltake | Thermaltake |
| thermic | térmico |
| thermionic | caluroso |
| thermionic tube | lámpara termoiónica |
| thermistor | termistor |
| thermite | termita |
| Thermite welding | Soldadura aluminotérmica |
| thermo- | termo- |
| Thermo-couple | Termopar |
| Thermo-luminescence | Termoluminiscencia |
| Thermobaric weapon | Bomba termobárica |
| Thermodesulfobacteria | Thermodesulfobacteria |
| Thermodynamic cycle | Ciclo termodinámico |
| Thermodynamic process | Proceso termodinámico |
| Thermodynamic system | Sistema |
| thermodynamics | termodinámica |
| thermoelectric | termoeléctrico |
| thermoelectricity | termoelectricidad |
| Thermographic camera | Cámara infrarroja |
| Thermohaline circulation | Circulación termohalina |
| Thermoluminescence dating | Termoluminiscencia |
| thermometer | termómetro |
| thermonuclear | termonuclear |
| thermonuclear weapon | bomba termonuclear |
| Thermoplasma | Thermoplasma |
| thermoplastic | termoplástico |
| Thermopylae | Termópilas |
| Thermopyles | Termópilas |
| thermos | termo |
| thermos bottle | termos |
| thermos flask | termo |
| thermosbottle | termo |
| thermosetting | termofraguante |
