<synset id="n05132962" type="n">
<lex_filenum>07<lex_filenum/>
<word lex_id="0">combat ceiling<word/>
<word lex_id="0">service ceiling<word/>
<pointer refs="n05132667">Hypernym<pointer/>
<def>altitude above which a plane cannot climb faster than a given rate<def/>
<synset/>