<synset id="n05228881" type="n">
<lex_filenum>08<lex_filenum/>
<word lex_id="0">optic chiasma<word/>
<word lex_id="0">optic chiasm<word/>
<word lex_id="0">chiasma opticum<word/>
<pointer refs="n05228496">Hypernym<pointer/>
<def>the crossing of the optic nerves from the two eyes at the base of the brain<def/>
<synset/>