WordReference Random House Learner's Dictionary of American English © 2015
dis•ser•ta•tion /ˌdɪsɚˈteɪʃən/USA pronunciation n. [countable] Educationa thesis, esp. one written by a candidate for a doctoral degree:wrote a dissertation on economic policy. any formal speech or writing:a dissertation on natural childbirth.

Collins Concise English Dictionary © HarperCollins Publishers::

dissertation /ˌdɪsəˈteɪʃən/ n
  1. a written thesis, often based on original research, usually required for a higher degree
  2. a formal discourse

ˌdisserˈtational adj

'dissertation' also found in these entries:

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