something that remains after a part is removed, disposed of, or used; remainder; rest; remnant.

Chemistry .

residuum ( def. 2 ) .

an atom or group of atoms considered as a group or part of a molecule.

that part remaining as a solid on a filter paper after a liquid passes through in the filtration procedure.

Law . the part of a testator's estate that remains after the payment of all debts, charges, special devises, and bequests.

Mathematics .

the coefficient of the term with exponent ?1 in a Laurent series of a function of a complex variable.

a number related to a given number by a congruence.

noun

base , core

noun

balance , debris , dregs , dross , excess , extra , garbage , heel , junk , leavings , leftovers , orts , parings , remainder , remains , remnant , residual , residuum , rest , scourings , scraps , scum , sewage , shavings , silt , slag , surplus , trashnotes:remainder is a general word for what is left over , while residue (and residuum ) is the remains at the end of a process; remnant is a part left after the greater part has been removed , leftover , ash , ashes , cinder , foots , grounds , lees , relics , sediment , sludge , soot , waste