From en.wikipedia.org:
[TDD]
TDD may refer to: [TOC right]
** Science and technology
- Telecommunications device for the deaf , a device for text communication along a telephone line
- Test-driven development , a type of software development methodology
- Time-division duplex , the application of time-division multiplexing to separate outward and return signals
- LTE-TDD , a 4G telecommunications technology and standard
- Transdermal drug delivery , a method of delivering drugs through the skin and into the bloodstream
** Other uses
- Transportation development district , a special-purpose district created in some US states
- Teniente Jorge Henrich Arauz Airport (IATA airport code), Trinidad, Bolivia
- Tai Nüa language (ISO639-3 code: tdd)
[Disambiguation]