noun
1.
a place or situation used for testing new ideas and methods to see if they work
2.
a place used for testing machines, etc. to see if they work correctly :
a piece of land in use as a tank testing ground
noun
1.
a place or situation used for testing new ideas and methods to see if they work
2.
a place used for testing machines, etc. to see if they work correctly :
a piece of land in use as a tank testing ground
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005