<synset id="n02980036" type="n">
<lex_filenum>06<lex_filenum/>
<word lex_id="0">caster<word/>
<word lex_id="1">castor<word/>
<pointer refs="n04101701">Hypernym<pointer/>
<def>a pivoting roller attached to the bottom of furniture or trucks or portable machines to make them movable<def/>
<synset/>