trīcēnārĭus, a, um, adj. [triceni],
of or containing thirty : fistula, thirty quarterdigits in diameter , Front. Aquaed. 29; 48: filius, thirty years old , Sen. Excerpt. Controv. 3, 3 fin. : homo, Arn. 2, 58; Pall. Aug. 12; Front. Aquaed. 29; 48.