<synset id="n09392656" type="n">
<lex_filenum>17<lex_filenum/>
<word lex_id="0">pion<word/>
<word lex_id="0">pi-meson<word/>
<pointer refs="n09352282">Hypernym<pointer/>
<def>a meson involved in holding the nucleus together<def/>
<def>produced as the result of high-energy particle collision<def/>
<synset/>