birth ‧ rate /ˈbɜːθreɪt $ ˈbɜːrθ-/ BrE AmE noun [countable]
the number of births for every 100 or every 1,000 people in a particular year in a particular place:
the rising birthrate
birth ‧ rate /ˈbɜːθreɪt $ ˈbɜːrθ-/ BrE AmE noun [countable]
the number of births for every 100 or every 1,000 people in a particular year in a particular place:
the rising birthrate
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012