arctūrus, i, m., = ἀρκτοῦρος.
I As a star.
A The brightest star in Bootes , whose rising and setting was supposed to portend tempestuous weather ( Plaut. Rud. prol. 71): stella micans radiis, Arcturus, Cic. Arat. 99; id. N. D. 2, 42, 110 (as a transl. of Arat. 95); cf. Hyg. Fab. 130; id. Astr. 2, 4; Verg. A. 1, 744; Vulg. Job, 9, 6; 37, 9; ib. Amos, 5, 8; introduced in Plaut. Rud. as Prologus.—Transf.
B The whole constellation (syn.: Bootes, Arctophylax), Verg. G. 1, 204 Voss.—
C The rising of Arcturus , Verg. G. 1, 68.—
II A plant , v. arction.