<synset id="n04256318" type="n">
<lex_filenum>06<lex_filenum/>
<word lex_id="0">sodium-vapor lamp<word/>
<word lex_id="0">sodium-vapour lamp<word/>
<pointer refs="n03636248">Hypernym<pointer/>
<def>lamp in which an electric current passed through a tube of sodium vapor makes a yellow light<def/>
<def>used is street lighting<def/>
<synset/>