Dr definition: 1. written abbreviation for Doctor: 2. written abbreviation for Doctor: 3. abbreviation for…. Learn more. What does the abbreviation DR stand for? Meaning: debtor. How to use dr in a sentence. Probably a real change would be the cure the drs can't find. fluid dram (fl dr) a unit of capacity (liquid measure) of the apothecaries' system, being 60 minims, or the equivalent of 3.697 mL. In Great Britain, it is the imperial fluid dram and is equivalent to 3.55 mL. See also Table of Weights and Measures in the Appendix. Having become established in European universities, this usage spread around the world. Contracted Dr or Dr. , it is used as a designation for a person who has obtained a doctorate (commonly a PhD). In past usage, the term could be applied to any learned person. Choosing a doctor isn’t the same as finding a restaurant for dinner or looking up the nearest dry cleaners. That’s why Healthgrades gives you the full picture of a doctor’s qualifications, including clinical experience, hospital quality measures, and patient feedback. DR (broadcaster), the Danish Broadcasting Corporation DR Automobiles, an Italian automobile company DR Handmade Strings, a manufacturer of guitar strings Design Research (store), or D/R, a former retail store Deutsche Reichsbahn, former German railway company Deutsche Reichsbahn (East Germany), former German railway company Digital Research, a defunct American software company Duane Reade, an.