1. (n.) That which remains after a part is taken, separated, removed, or designated; remnant; remainder\.

2. (n.) That part of a testator's estate which is not disposed of in his will by particular and special legacies and devises, and which remains after payment of debts and legacies.

3. (n.) That which remains of a molecule after the removal of a portion of its constituents; hence, an atom or group regarded as a portion of a molecule; -- used as nearly equivalent to radical, but in a more general sense.

4. (n.) Any positive or negative number that differs from a given number by a multiple of a given modulus; thus, if 7 is the modulus, and 9 the given number, the numbers -5, 2, 16, 23, etc., are residues.

afterglow afterimage balance butt butt end candle ends chaff debris detritus dregs end excess fag end filings fossil heel holdover husks leavings leftover leftovers odds and ends offscourings orts parings rags refuse relics remainder remains remnant residual residuum rest roach rubbish ruins rump sawdust scourings scraps shadow shavings straw stubble stump surplus survival sweepings trace vestige waste