'Mansard roof' definitions:

Definition of 'mansard roof'

(from WordNet)
noun
A hip roof having two slopes on each side [syn: mansard, mansard roof]

Definition of 'Mansard roof'

From: GCIDE
  • Mansard roof \Man"sard roof"\ [So called from its inventor, Fran[,c]ois Mansard, or Mansart, a distinguished French architect, who died in 1666.] (Arch.) A hipped curb roof; that is, a roof having on all sides two slopes, the lower one being steeper than the upper one. [1913 Webster]