septŭāgēni, ae, a (gen. plur. septuagenarum, Cod. Th. 14, 4, 4, § 1), num. distrib. adj. [septuaginta],
I seventy each : pyramides in imo latae pedum quinum septuagenum, Plin. 36, 13, 19, § 92; for which, in one word, fistula septuagenumquinum, Front. Aquaed. 57; cf. sexageni.—
II Seventy at a time , seventy : septuagies septuageni pedes, Col. 5, 2, 7.— Sing. , each seventieth : coitu, Plin. 26, 10, 63, § 99.