n.

1. 附属物
2. 助手；副手
3. 【语】附加语；修饰语

a.

1. 附属的；兼职的；副的
   He was hired as an adjunct professor by the History Department of National Taiwan University.

   他被台大历史系聘为兼职教授。

n.

1. an additional and supplementary part.
2. an assistant.
3. Grammar  a word or phrase in a sentence other than the verb or predicate.

adj.