1. Something added to enhance food, petrol, paint or medicine
   "The fuel contained an additive to improve engine performance"

1. (mathematics) designating or involving an equation whose terms are of the first degree
   "The problem could be solved using an additive equation";
   - linear
    
2. Characterized or produced by addition
   "an additive process"

Derived forms: additives

See also: accumulative, addable, additional, bilinear, complemental, complementary, cumulative, extra, incremental, intercalary, summational, summative, supplemental, supplementary

Type of: addition, add-on, improver

Antonym: nonlinear, subtractive

Encyclopedia: Additive