residuum
Left after processing
Residuum is a formal or technical term for what remains after a process—a residue.
In chemistry, it's the matter left after evaporation, distillation, or combustion.
In law, the residuum of an estate is what's left after specific bequests are distributed.
The word sometimes appears in philosophical or scientific writing where *residue* would sound too informal: The residuum of doubt lingered.
Headlong and reckless
- depositPlace for safekeeping
- siltWaterborne earth particles
- sludgeSemi-solid waste material
- dregsResidue at bottom
settling · alluvium · mud · grit · clay · loam · particulate · gravel
Faint surviving trace
- relicPreserved ancient object
- remainsContinues in place
- traceMinute remnant or pursue
- fragmentIncomplete portion of whole
husk · shell · skeleton · fossil · artifact · shard · hulk · carcass
Unwanted discarded material
- effluentDischarged liquid waste
- slagIndustrial metalworking byproduct
- drossMetalwork's floating refuse
- tailingsPost-extraction mineral waste
leachate · emissions · discharge · runoff · scrap · pollutants · exhaust · outflow
Faint surviving trace
- hintIndirect suggestion
- echoReflected sound wave
- ghostApparition of the dead
- shadowLight blocked by object
whisper · suggestion · whiff · glimmer · scent · imprint · mark · sign
Headlong and reckless
- filtrateLiquid after straining
- calcineHeat to transform chemically
- extractConcentrated derived substance
- concentrateReduced, potent form
sublimate · distillate · reagent · analyte · supernatant · pellet · fraction
precipitate
Headlong and reckless
dregs · settling · alluvium · mud · grit · clay · loam · particulate · gravel · marl
vestige
Faint surviving trace
fragment · husk · shell · skeleton · fossil · artifact · shard · hulk · carcass · wreckage
waste
Unwanted discarded material
- effluentDischarged liquid waste
- slagIndustrial metalworking byproduct
- drossMetalwork's floating refuse
tailings · leachate · emissions · discharge · runoff · scrap · pollutants · exhaust · outflow · refuse
vestige
Faint surviving trace
shadow · whisper · suggestion · whiff · glimmer · scent · imprint · mark · sign · indication
precipitate
Headlong and reckless
- filtrateLiquid after straining
- calcineHeat to transform chemically
- extractConcentrated derived substance
concentrate · sublimate · distillate · reagent · analyte · supernatant · pellet · fraction
residuumfiltrate
Liquid after straining
permeate · extract · distillate · effluent · supernatant
- white residue
- sticky residueClinging material left behind
- oily residueSlippery lipid coating
- burnt residueScorched material left behind
- residual limbExtremity portion remaining post-amputation
- tape residueSticky film left behind