<synset id="n15276427" type="n">
<lex_filenum>28<lex_filenum/>
<word lex_id="0">birthrate<word/>
<word lex_id="0">birth rate<word/>
<word lex_id="0">fertility<word/>
<word lex_id="0">fertility rate<word/>
<word lex_id="0">natality<word/>
<pointer refs="n15286249">Hypernym<pointer/>
<def>the ratio of live births in an area to the population of that area<def/>
<def>expressed per 1000 population per year<def/>
<synset/>