Editing T3 (section)

==Science, mathematics and technology==
* Axiom T3, or T3 space, [[regular space]] in topology and related fields of mathematics
* [[T3 Technion Technology Transfer]], the technology transfer office of the Technion Israel Institute of Technology
* T3 line, or [[Digital Signal 3]], a 44.736&nbsp;Mbit/s telecommunications channel standard
* T-3, a [[Palomar–Leiden survey]] Jupiter Trojan subproject
* A tornado intensity rating on the [[TORRO scale]]

===Devices===
* [[SPARC T3]], a CPU introduced by Sun Microsystems in 2010
* [[Tungsten T3]], a palmOne handheld device
* [[Talking tactile tablet]], a touch sensitive device for visually impaired people
* [[Canon EOS Rebel T3]], a digital camera
* T3, a [[Hospedia]] bedside television 
* [[Sony Xperia T3]], an Android smartphone

===Medicine===
* T<sub>3</sub>, in endocrinology, [[triiodothyronine]], a thyroid hormone
* T3 [[spinal nerve]]
* Third [[thoracic vertebrae]]
<!-- not in article: * A [[non-small-cell lung carcinoma]] staging code for a type of tumour -->
<!-- not in article: * A nickname for [[Tylenol 3]] (paracetamol with codeine, or co-codamol), a painkiller -->
* An electrode site in the [[10–20 system (EEG)|10–20 EEG system]]