trundle-bed

from The Collaborative International Dictionary of English v.0.48
Trundle-bed \Trun"dle-bed`\, n.
   A low bed that is moved on trundles, or little wheels, so
   that it can be pushed under a higher bed; a truckle-bed;
   also, sometimes, a simiral bed without wheels. --Chapman.
   [1913 Webster]
    

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