- a substance added to something in small quantities, typically so as to improve or preserve it添加剂：
many foods contain chemical additives.
许多食物含有化学添加剂。
1
- characterized by, relating to, or produced by addition累积的, 添加的：
an additive process.
加成过程。
1.1
- technical of or relating to the reproduction of colours by the superimposition of primary colours〈技〉（与）叠加色（有关）的。
词源
late 17th cent. (as an adjective)： from late Latin additivus, from Latin addit- 'added'， from the verb addere （see ADD）. The noun dates from the 1940s.