remaining after the greater part or quantity has gone:the withdrawal of residual occupying forces
(of a quantity) left after other items have been subtracted:residual income after tax and mortgage payments
(of a physical state or property) remaining after the removal of or present in the absence of a causative agent:residual stenosis
(of an experimental or arithmetical error) not accounted for or eliminated.
(of a soil or other deposit) formed in situ by weathering.
1a quantity remaining after other things have been subtracted or allowed for:the Keynesian component is clearly a residual which is arrived at by subtracting the natural and classical components from overall unemployment
a difference between a value measured in a scientific experiment and the theoretical or true value.
Geology a portion of rocky or high ground remaining after erosion:the eroded residuals of reefs built in relation to earlier, higher sea levels
2a royalty paid to a performer, writer, etc. for a repeat of a play, television show, etc.:she has been awarded more than $4.5 million in residuals and profits from the highly successful television show
3the resale value of a new car or other item at a specified time after purchase, expressed as a percentage of its purchase price:the federation wants car tax taken out over five years to avoid residuals being hit
residual in other Oxford dictionaries
Definition of residual in the US English dictionary