noun Download 🔗Share A formal exposition of a subject, especially a research paper that students write in order to complete the requirements for a doctoral degree; a thesis. Examples : "Students spend years researching and writing their dissertations to earn their Ph.D. degrees. " education writing achievement degree literature Chat with AIVocabulary GamePractice Reading
noun Download 🔗Share A lengthy lecture on a subject; a treatise; a discourse; a sermon. Examples : "Professor Davis's dissertation on the history of the family was a lengthy discourse, taking several hours to present. " education literature writing language Chat with AIVocabulary GamePractice Reading