noun
General term for something left behind after a process, such as physical residue, remnants, or dregs.
コーヒーカップの底に残留物が残っていた。
There was residue left at the bottom of the coffee cup.
工
The disposal of residues from the factory has become a problem.
noun
residuum; geological residue
Geological term for the weathered material remaining after soluble components have been removed.
この地域の残留物は主に粘土鉱物からなる。
The residuum in this area consists mainly of clay minerals.