Quadruplane

1 definition found

From The Collaborative International Dictionary of English v.0.48 [gcide]:

  Quadruplane \Quad"ru*plane\, n. [L. quadru- in comp. + E.
     plane.]
     An airplane with four superposed main supporting surfaces.
     Contrasted with {triplane} {biplane} and {monoplane}. They
     are now used only for hobbyist or historical activities.
     [Webster 1913 Suppl. +PJC]