[pree-kast, -kahst]Building Trades.
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verb (used with object), pre·cast, pre·cast·ing.
  1. to cast (a concrete block or slab, etc.) in a place other than where it is to be installed in a structure.
  1. (of a building or section) cast before being transported to the site of installation: a precast concrete roof.

Origin of precast

First recorded in 1860–65; pre- + cast Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2018

Examples from the Web for precast

Historical Examples of precast

British Dictionary definitions for precast


adjective (ˈpriːˌkɑːst)
  1. (esp of concrete when employed as a structural element in building) cast in a particular form before being used
verb (priːˈkɑːst) -casts, -casting or -cast
  1. (tr) to cast (concrete) in a particular form before use
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012