noun
[ U ] ( physics ) the universe considered as a continuum with four measurements—length, width, depth and time—inside which any event or physical object is located
noun
[ U ] ( physics ) the universe considered as a continuum with four measurements—length, width, depth and time—inside which any event or physical object is located
Oxford Advanced Learner's English Dictionary. Оксфордский английский словарь для изучающик язык на продвинутом уровне. 2005