T4
T4 stands for:
- the Tiergartenstraße 4 in Berlin (as Tarnkürzel)
- Action T4 , the short form of a murder of disabled people declared as "euthanasia" under National Socialism
- a diesel multiple unit of the North German Railway Company Niebüll based on an ÖBB 5047 from Jenbacher Werke.
- Hexogen , an explosive also known as cyclotrimethylene trinitramine, cyclonite or RDX
- Difficulty level on the SAC hiking scale
- T4 (Hafif Metro Istanbul) , a metro line in Istanbul
- T4 (Tabular Timeline Tracking Tool), a software tool for OpenVMS
- T4 connection , threaded connection for camera lenses
- Standardized diameter for fluorescent tubes, see fluorescent lamp # Standardized sizes
- T4 helper cell , the cell type of lymphocytes of the immune system
- T4 phage , the bacteriophage T4
- T 4 space , a term from topology
- Tatra T4 , a tram model from the manufacturer Tatra
- Fitness level 4 according to conscription law, see fitness level
- Text Template Transformation Toolkit , software included in Microsoft Visual Studio (version 2008 or later) for generating text files
- Thyroxine (tetraiodothyronine), a thyroid hormone
- TRIP Linhas Aéreas , Brazilian regional airline (IATA code)
- VW T4 , a transporter
- Wild T4 , a large angle measuring device from Wild Heerbrugg
- T 4 law, based on the formula of the Stefan-Boltzmann law for thermal radiation of the absolute temperature T
- T4 as an alternative name for the Tiyas military airfield in Syria
T-4 stands for:
- A Syrian airfield and air force base, see Tiyas military airfield
- a Soviet aircraft, see Sukhoi T-4
- a torpedo, see wren (torpedo)
- a Japanese trainer aircraft, see Kawasaki T-4
- a Soviet chain tractor from the Altaiski Traktorny Zavod , see T-4 (tractor)
T 4 stands for:
- T 4 (1938) , a 1935 type torpedo boat of the Kriegsmarine
- Type T 4, designation used from 1910 for the Mecklenburgische XXI steam locomotive
