noun
Usage: sometimes capitalized both Bs
: a theory in astronomy: the universe originated billions of years ago in an explosion from a single point of nearly infinite energy density — compare steady state theory herein
noun
Usage: sometimes capitalized both Bs
: a theory in astronomy: the universe originated billions of years ago in an explosion from a single point of nearly infinite energy density — compare steady state theory herein
Webster's New International English Dictionary. Новый международный словарь английского языка Webster. 2012