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sĕnātōrĭus, a, um, adj. [senator], of or belonging to a senator, senatorial: cujus aetas a senatorio gradu longe abesset, Cic. Imp. Pomp. 21, 61; cf. ordo, Caes. B. C. 1, 23; 3, 33; Cic. Fl. 18, 43; Sall. C. 17, 3; id. J. 62, 4; 104, 1: dignitas, Suet. Claud. 24: locus, Gell. 12, 1, 2: subsellia, Cic. Corn. 1, p. 449 Orell.: consilium, the deliberations of the Senate, id. Verr. 2, 1, 2, § 4: munera, id. Tusc. 1, 1, 1; Suet. Aug. 35: litterae, speeches made in the Senate, Cic. Off. 2, 1, 3: album, Tac. A. 4, 42 fin.: aetas, Gell. 14, 8, 1 et saep.: quid tam civile, tam senatorium, quam illud, etc., Plin. Pan. 2, 7.
Subst.: sĕnātōrĭus, ii, m., a senator: homines nobiles cum paucis senatoriis, Sall. Rep. Ord. 2, 11 fin. p. 277 Gerl.