<synset id="n15070897" type="n">
<lex_filenum>27<lex_filenum/>
<word lex_id="0">prothrombin<word/>
<word lex_id="0">factor II<word/>
<pointer refs="n15022776">Hypernym<pointer/>
<def>a protein in blood plasma that is the inactive precursor of thrombin<def/>
<synset/>