rădĭus (noun M) : cf.: radix, ramus
* A staff, rod.
* In gen.: acuti radii immissi,stakes,Liv. 33, 5, 11: ferreus,Plin. 10, 42, 58, § 117.
* In partic.
* A beam or ray of any shining object; of the sun,Plaut. Mil. 1, 1, 2; Lucr. 1, 48; 2, 117; Cic. Fin. 5, 24, 71; Verg. A. 4, 119; 7, 25; Tert. Res. Carn. 47; of lightning,Verg. A. 8, 429; Val. Fl. 6, 55; of the eyes,Gell. 5, 16, 2; of the halo around the heads of divine or deified personages: aurati,Verg. A. 12, 163; cf. radio, II.
* In mathematics
* A staff, rod, for measuring, etc., Cic. Tusc. 5, 23, 64; Verg. E. 3, 41; id. A. 6, 850; Macr. S. 7, 2; Tert. Idol. 9.
* In weaving, a shuttle, Ov. M. 6, 56; 132; Lucr. 5, 1352; Verg. A. 9, 476.
* In zoology
* The spur of many kinds of birds, Plin. 11, 47, 107, § 257; esp. of the cock,id. 30, 11, 29, § 97.
* In botany, a kind of long olive, Verg. G. 2, 86; Col. 5, 8, 4; id. Arb. 17, 3; Plin. 15, 3, 4, § 13. A sub-species of the same, called radius major, Cato, R. R. 6, 1; Varr. R. R. 1, 24.
* In anatomy, the radius, the exterior bone of the forearm, Gr. κερκίς, Cels. 8, 1.
* Radius virilis = membrum virile, Cael. Aur. Acut. 3, 14, 115.

s. TLL

s. TLL