1. any rigid structural member projecting from a vertical support, especially one in which the projection is great in relation to the depth, so that the upper part is in tension and the lower part in compression.
  2. Building Trades, Civil Engineering. any rigid construction extending horizontally well beyond its vertical support, used as a structural element of a bridge (cantilever bridge), building foundation, etc.
  3. Aeronautics. a form of wing construction in which no external bracing is used.
  4. Architecture. a bracket for supporting a balcony, cornice, etc.

verb (used without object)

  1. to project in the manner of a cantilever.

verb (used with object)

  1. to construct in the manner of a cantilever.


    1. a beam, girder, or structural framework that is fixed at one end and is free at the other
    2. (as modifier)a cantilever wing
  1. a wing or tailplane of an aircraft that has no external bracing or support
  2. a part of a beam or a structure projecting outwards beyond its support


  1. (tr) to construct (a building member, beam, etc) so that it is fixed at one end only
  2. (intr) to project like a cantilever

1660s, probably from cant (n.2) + lever, but earliest form (c.1610) was cantlapper. First element also might be Spanish can “dog,” architect’s term for an end of timber jutting out of a wall, on which beams rested. Related: Cantilevered.

  1. A projecting structure, such as a beam, that is supported at one end and that carries a load at the other end or along its length. Cantilevers are important structures in the design of bridges and cranes.

Leave a Reply

Your email address will not be published.

48 queries 0.439