| T-R | IEEE Transactions on Reliability 
| Others |
| T-RA | IEEE Transactions on Robotics and Automation
| Others |
| T-RAM | Thyristor Random Access Memory
| Others |
| T-RE | IEEE Transactions on Rehabilitation Engineering
| Others |
| T-REX | Tyrannosaurus Rex
| Others |
| T-RIP | Terminator Resistance Infiltrator Prototype
| Others |
| T-SAP | IEEE Transactions on Speech and Audio Processing
| Others |
| T-SE | IEEE Transactions on Software Engineering
| Others |
| T-SEM | IEEE Transactions on Semiconductor Manufacturing
| Others |
| T-SMC | IEEE Transactions on Systems, Man, and Cybernetics
| Others |
| T-SMCA | IEEE Transactions on Systems, Man, and Cybernetics, Part A (Systems & Humans)
| Others |
| T-SMCB | IEEE Transactions on Systems, Man, and Cybernetics, Part B (Cybernetics)
| Others |
| T-SP | IEEE Transactions on Signal Processing
| Others |
| T-STATE | Tense State
| Others |
| T-TBI | Technopark-Technology Business Incubator
| Others |
| T-TTM | Telesens Traffic Trade Manager
| Others |
| T-UFFC | IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control
| Others |
| T-VCG | IEEE Transactions on Visualization and Computer Graphics
| Others |
| T-VLSI | IEEE Transactions on Very Large Scale Integration (VLSI) Systems
| Others |
| T-VT | IEEE Transactions on Vehicular Technology
| Others |
| T-ZRO2 | Tetragonal ZIRCONIUM DIOXIDE
| Others |
| T. A. | Teaching Assistant
| Others |
| T. NEUT | Hematology
| Others |
| T.B. | Toggle Buffer
| Others |
| T.CO | twitter.com
| Others |
| T.O | Timed Out
| Others |
| T.O. | Top Of
| Others |
| T.P. | Tech-Prep
| Others |
| T.P. | Transition Period
| Others |
| t.q.d | Ter quaterve die three or four times a day
| Others |
| T/A | Taken As
| Others |
| T/A | Trading As
| Others |
| T/A | Turnaround
| Others |
| T/C | Table of Contents
| Others |
| T/C | Take Care
| Others |
| T/C | Telephone Call
| Others |
| T/C | Temperature Compensating
| Others |
| T/C | Termination Check
| Others |
| T/C | Thermo-Compression
| Others |
| T/C | Thrust Chamber
| Others |
| T/CAP | Thermal Capacitor
| Others |
| T/D | Temporarily Discontinued
| Others |
| T/D | Time Delay
| Others |
| T/D | Touchdown
| Others |
| T/E | Transporter/Erector
| Others |
| T/F | To Follow
| Others |
| T/HSE | TownHouse
| Others |
| T/L | Talk and Listen
| Others |
| T/L | Timeline
| Others |
| T/L | Transformer Load
| Others |