Definition of substitution. 1  1a : the act, process, or result of substituting one thing for anotherb : replacement of one mathematical entity by another of equal value. 2  2 : one that is substituted for another.
Homogenized milk is any sort of milk that has been mechanically treated to ensure that it has a smooth, even consistency. The homogenization process typically involves high temperatures, agitation, and filtration, all aimed at breaking down milk's naturally occurring fat molecules.
Condensed milk is typically heavily sweetened and cannot be  converted back to evaporated milk. Evaporated milk is a milk  product that has had the water removed. It can be â¦converted back to  regular milk by diluting it with an equal amount of water. 8 people found this useful.