Function: noun
Date: 1914
: a vehicle (as an airplane) used for testing new equipment (as engines or weapons systems) broadly : any device, facility, or means for testing something in development
Function: noun
Date: 1914
: a vehicle (as an airplane) used for testing new equipment (as engines or weapons systems) broadly : any device, facility, or means for testing something in development
Merriam Webster Collegiate English Dictionary. Merriam Webster - Энциклопедический словарь английского языка. 2012