— dissertational , adj. — dissertationist , n.
/dis'euhr tay"sheuhn/ , n.
1. a written essay, treatise, or thesis, esp. one written by a candidate for the degree of Doctor of Philosophy.
2. any formal discourse in speech or writing.
[ 1605-15; dissertation- (s. of dissertatio ), equiv. to dissertat ( us ) (ptp. of dissertare; dissert- (see DISSERT) + -atus -ATE 1 ) + -ion- -ION ]