What's the adjective for residues? Here's the word you're looking for.
residuary
Of or relating to a residue; residual; left over, when the main portion has been removed.
(law) With respect to a will, relating to the portion of an estate which was not disposed of in the will, or for which the directions in the will could not be carried out.
“However, occasionally a diamond appears in amongst the residual material, and there's always plenty of other less-precious material which can still be put to good use.”
“His residual legacy is the large number of his former students who now practice skills learned in his unit in many parts of the world.”
