Dreye权威释义 | dissertation

n.

（博士学位）论文；（专题）论文；学术演讲[（+on/upon/concerning）]
She wrote a dissertation on superrealism.
她写了一篇关于超现实主义的论文。

同义参见:

以上来源于：《英汉大辞典》

/ˌdɪsəˈteɪʃ(ə)n/

n.

a long essay, especially one written for a university degree or diploma.

C17 (in the sense ‘discussion, debate’): from L. dissertatio(n-), from dissertare ‘continue to discuss’.

以上来源于：《简明牛津英语词典》