Base course(redirected from Aggregate base coiurse)
Also found in: Encyclopedia.
|(Arch.)||The first or lower course of a foundation wall, made of large stones or a mass of concrete; - called also foundation course. (b) The architectural member forming the transition between the basement and the wall above.|
See also: Base
Webster's Revised Unabridged Dictionary, published 1913 by G. & C. Merriam Co.