IPA: /rɪˈzɪdʒuəl/
KK: /rɪˈzɪdʒuəl/
Describing something that is left over or remains after the main part has been removed or dealt with.
After the meal, there was a residual amount of food left on the plate.
The amount that remains after the main part has been taken away or used; it can refer to leftover payments or quantities.
After the project was completed, the residual funds were allocated to other departments.
Residual → It is formed from "residuum" (from Latin, meaning remainder or what is left) and the suffix "-al" (meaning pertaining to). The word "residual" refers to something that pertains to what is left over or remaining.
Think of the word 'residuum' which means what is left over — that's why 'residual' refers to something that remains.