QD
The abbreviation QD stands for:
- Qualifying-dimensioning , near-natural silviculture strategy
- Quaestiones disputatae , a theological scientific book series by the Herder publishing house
- Queen Dowager (English), the title worn by the wife of a late king
- Quadramed Corporation, ticker symbol
- Quartz Date, an LED on the back of the camera to write the date on the film
- quad density (English); see disk # formats
- quantum dot (English); see quantum dot
- QuickDraw , a Macintosh 2D screen description language
- QD connector Quick Disconnect (English) or Quick Detachable (English), a connector
- Quartile deviation , English for mean interquartile range , see interquartile range (descriptive statistics) #Constructive terms
qd stands for:
- quaque die ( Latin ), every day
- quiet down (English), chat slang for "calm down!"