- RTD
RTD may refer to:
* Russell'sTheory of Descriptions
*Ready to drink , an alcoholic or non-alcoholic beverage that requires no preparation before it can be consumed
*Real-Time Dispatching , a software component
*Referee Technical Decision , a rare end to boxing matches
*Research & Technological Development
*Residence Time Distribution
*Resistance temperature detector , a type of temperature sensor
*Resonant tunnelling diode , a device using the quantum effect and the negative differential resistance
*Richmond Times-Dispatch , the primary daily newspaper inRichmond, Virginia
*Round-trip delay time , a system performance measure in telecomunnications and radar systems
*RTD Embedded Technologies , anembedded systems company (formerly known as Real Time Devices USA)
*Russell T Davies , a British television producer and writer whose name is often abbreviated by fans (usually on internet forums)
*Dan Wheeler , known as "Really Tall Dan," an electrical engineering researcher atMIT
* Record Type Definition, a standardised definition of a record, commonly used in the NFC Forum
*Radio Tanzania Dar es Salaam , the state radio broadcasting organisation ofTanzania In transportation:
*Regional Transportation District , a mass transit management system based in Denver, Colorado, United States
*Sacramento Regional Transit District in California, United States
*San Joaquin Regional Transit District of Stockton, California
*Southern California Rapid Transit District , now known as the Los Angeles County Metropolitan Transportation Authority
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