Russian-English translations for доба́вка

• additive
  Matrix multiplication is additive, in that M\vec v+M\vec w=M(\vec v+\vec w
  It is natural to look at a finite cyclic group as an additive group
  Oil may be used as an additive in gasoline to improve the lubrication of a small engine
• amendment
  The First Amendment guarantees freedom of religion, speech, press, assembly, and petition.
  The Thirteenth Amendment to the United States Constitution abolished slavery.
  a soil amendment
• complement
  The complement of blue is orange.
  The complement of the odd numbers is the even numbers, relative to the natural numbers.
  The complement of 01100101_2 is 10011010_2.
• flavor
  The flavor of this apple pie is delicious.
  Flavor was added to the pudding.
  What flavor of bubble gum do you enjoy?
• refill
  Today it is $2 for a coffee, with free refills throughout the day.
  Were cutting back. No new printers or pens, just refills.
  Can you refill my cup please? Ive finished my coffee.
• second helping
  He had already eaten six sausages, but that did not stop him reaching for a second helping.
• supplement