1. 
   RTD
   acronym: real-time data
   Found op http://cdiac.ornl.gov/pns/acronyms.html#R
   
   
2. 
   RTD
   Resistance Temperature Detector.
   Found op http://www.flowmeterdirectory.com/flowmeter_technical_glossary/flowmeter_te
   
   
3. 
   RTD
   Real Time Dampening
   Found op http://www3.sympatico.ca/dhaughey/j1930.htm
   
   
4. 
   rtd
   1) Real-time data
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/rtd/1
   
   

Tip: double click on a word to show its meaning.