T3

T3 or T-3 may refer to:

• The axiom of separation in mathematics, or the class of topological spaces satisfying it
• T3 ~ Technion Technology Transfer, the technology transfer office of the Technion Israel Institute of Technology
• SPARC T3, a CPU introduced by Sun Microsystems in 2010
• Digital Signal 3 or T3 line, a type of telecommunications service
• Fletcher's Ice Island or T-3, an iceberg discovered by U.S. Air Force Colonel Joseph O. Fletcher and used as a manned scientific research station
• T3 (magazine), a monthly magazine published by Future Publishing focusing on new and hi-tech gadgets
• T3 (The Think Tank), an independent advertising agency and the largest woman owned advertising agency in the US
• Fuji T-3, a Japanese primary military trainer aircraft
• Tatra T3, a tramcar manufactured by ČKD Tatra
• Tungsten T3, a device in the line of palmOne Tungsten handhelds
• Volkswagen Type 2 (T3), the third generation of the Volkswagen Bus
• Eastern Airways (IATA code)
• In topology, see regular space
• Terminator 3: Rise of the Machines, the third movie in the Terminator series
• Tekken 3 , fighting game
• Tokyo Teleport Town, a planned city on reclaimed land in Tokyo Bay
• The third public float of the Telstra
• A type of transit lane in Australia
• Paris tramway Line 3
• T3 (rapper), a member of the hip-hop group Slum Village
• A model of the OS T1000 train of the Oslo Metro
• T-3 (tokamak), one of the first successful tokamaks ever to be constructed
• Talking Tactile Tablet, a touch sensitive device to help visually impaired people interpret maps and diagrams
• T3 Motion, Inc., an electric vehicle and public safety product company based in the United States
• T-carrier in telecommunications
• Trager-Bierens T-3 Alibi, glider
• Canon EOS Rebel T3, the North American name of the entry-level digital SLR sold in most of the rest of the world as the EOS 1100D
  • Compare with the Canon EOS Rebel T3i, an upper entry-level DSLR also known as the EOS 600D.
• T3: Kapatid Sagot Kita, a investigative-public affairs program of TV5 in the Philippines

Medicine

• In endocrinology, T₃ is an abbreviation for triiodothyronine
• In human anatomy:
  • T3 spinal nerve
  • Third thoracic vertebrae
• A non-small cell lung carcinoma staging code for a type of tumour
• A nickname for Tylenol 3 (paracetamol with codeine, or co-codamol), a painkiller