Source : Webster's Revised Unabridged Dictionary (1913)

   {Live birth}, the condition of being born in such a state
      that acts of life are manifested after the extrusion of
      the whole body. --Dunglison.

   {Live box}, a cell for holding living objects under
      microscopical examination. --P. H. Gosse.

   {Live feathers}, feathers which have been plucked from the
      living bird, and are therefore stronger and more elastic.
      

   {Live gang}. (Sawing) See under {Gang}.

   {Live grass} (Bot.), a grass of the genus {Eragrostis}.

   {Live load} (Engin.), a suddenly applied load; a varying
      load; a moving load; as a moving train of cars on a
      bridge, or wind pressure on a roof.

   {Live oak} (Bot.), a species of oak ({Quercus virens}),
      growing in the Southern States, of great durability, and
      highly esteemed for ship timber. In California the {Q.
      chrysolepis} and some other species are also called live
      oaks.

   {Live ring} (Engin.), a circular train of rollers upon which
      a swing bridge, or turntable, rests, and which travels
      around a circular track when the bridge or table turns.

   {Live steam}, steam direct from the boiler, used for any
      purpose, in distinction from {exhaust steam}.

   {Live stock}, horses, cattle, and other domestic animals kept
      on a farm. whole body.

Source : WordNet®

live load
     n : a variable load on a structure (e.g. a bridge) such as
         moving traffic [syn: {superload}]