dissertations

/ˌdɪsərˈteɪʃn/

dis·set·ta·tion

BrE /ˌdɪsəˈteɪʃn/

NAmE /ˌdɪsərˈteɪʃn/

~ (on sth)

a long piece of writing on a particular subject, especially one written for a university degree