<synset id="n09400037" type="n">
<lex_filenum>17<lex_filenum/>
<word lex_id="0">proton<word/>
<pointer refs="n09374886">Hypernym<pointer/>
<pointer refs="n09307719">Hyponym<pointer/>
<def>a stable particle with positive charge equal to the negative charge of an electron<def/>
<synset/>