<synset id="n05570839" type="n">
<lex_filenum>08<lex_filenum/>
<word lex_id="0">sphincter<word/>
<word lex_id="0">anatomical sphincter<word/>
<word lex_id="0">sphincter muscle<word/>
<pointer refs="n05289297">Hypernym<pointer/>
<pointer refs="n05571501 n05571713 n05572227 n05572396 n05572629 n05572782 n05572940 n05573099">Hyponym<pointer/>
<def>a ring of muscle that contracts to close an opening<def/>
<synset/>