1. (a.) Of or pertaining to a senator, or a senate; becoming to a senator, or a senate; as, senatorial duties; senatorial dignity.

2. (a.) Entitled to elect a senator, or by senators; as, the senatorial districts of a State.

biaxial bicuspid bifid biform binocular binomial binominal bipartite biped bipetalous bipinnate bisexual bivalent congressional deliberative lawmaking legislative legislatorial parliamentary senatorial unibivalent unicameral