Definitions for "Digital SLR"
A digital SLR is simply a SLR camera that takes photos digitally (electronically) rather than using traditional film; popular examples are the Nikon D70 and Canon EOS 20D. (see SLR)
a pro-level digital single-lens reflex camera
a pure, unadulterated still-photo machine, with fast focusing, fast startup time, a catalog of available lenses, days-long battery life and practically no shutter lag (the delay after you press the shutter button)
a sensitive piece of equipment and should not be serviced by untrained users