Wiktionary
n. 1 A laboratory where computational or mathematical analysis are used to simulate a physical phenomenon. 2 A photographic laboratory that does not use "wet" photographic chemicals.
Wikipedia
A dry lab is a laboratory where computational or applied mathematical analyses are done on a computer-generated model to simulate a phenomenon in the physical realm. Examples of such phenomena include a molecule changing quantum states, the event horizon of a black hole or anything that otherwise might be impossible or too dangerous to observe under normal laboratory conditions. This term may also refer to a lab that uses primarily electronic equipment, for example, a robotics lab. A dry lab can also refer to a laboratory space for the storage of dry materials. The term dry lab is also used in the photo printing industry to refer to photo printing systems that do not employ the use of "wet" photographic chemicals.
Dry labbing can also refer to supplying fictional (yet plausible) results in lieu of performing an assigned experiment.
Usage examples of "dry lab".
It should have been floating around the dry lab with all the other dead fish.
He laughed as well, letting out brief whoops that echoed off the stark, white walls of the dry lab.