<synset id="n04941809" type="n">
<lex_filenum>07<lex_filenum/>
<word lex_id="0">vapor density<word/>
<word lex_id="0">vapour density<word/>
<pointer refs="n05089782">Hypernym<pointer/>
<def>the density of a gas relative to the density of hydrogen<def/>
<synset/>