It is called the remander. Such as, the remander number.
offcuts
It means the remainder if any when numbers are divided as for example 49 divided by 6 = 8 with a remainder of 1 leftover
add a decimal
So that whatever leftover gunk happens to be on the table doesn't get all over the part of the stopper that goes into the bottle, contaminating the contents.
A leftover piece of material is commonly referred to as a scrap.
A part leftover after use is a remnant.
Remnants.
leftover stew
It is called the remander. Such as, the remander number.
millen
Leftover material is called scrap.
The burnt.
asteroids
hey
"Game Called Life" by Leftover Cuties
Small leftover pieces of cigarette are called cigarette butts.