superbackground adjective 1noun 1forms 1 adjective1 •Forming a background with unusually high concentrations of something.The superbackground dissolved aluminum levels will exceed the usual concentrations by a factor of no more than a few tens. — 1990 noun1 •Synonym of superspace.A very interesting example of such restrictions is the following. No extended chiral superfields could exist in the superbackground for N = 3, ... — 1984 formssuperbackgrounds
