[ dis-er-tey-shuhn ]
See synonyms for dissertation on Thesaurus.com
  1. a written essay, treatise, or thesis, especially one written by a candidate for the degree of Doctor of Philosophy.

  2. any formal discourse in speech or writing.

Origin of dissertation

First recorded in 1605–15; from Latin dissertātiōn-, stem of dissertātiō, equivalent to dissert + -ation

Other words from dissertation

  • dis·ser·ta·tion·al, adjective
  • dis·ser·ta·tion·ist, noun

Words that may be confused with dissertation

Words Nearby dissertation

Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2024

How to use dissertation in a sentence

British Dictionary definitions for dissertation


/ (ˌdɪsəˈteɪʃən) /

  1. a written thesis, often based on original research, usually required for a higher degree

  2. a formal discourse

Derived forms of dissertation

  • dissertational, adjective
  • dissertationist, noun

Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012