Lewis Short
thōrax (noun M.f) = θώραξ,: m. (but f. Treb. Poll. Claud. 3, 3)
* The breast, chest, thorax.
* Lit., in anatomy, Cels. 5, 25, 8; Plin. 27, 7, 28, § 49.
* Transf.
* A defence, armor, or covering for the breast, a breastplate, corselet, cuirass; a doublet, stomacher (syn. lorica), Liv. 4, 20, 7; Suet. Aug. 82; Verg. A. 10, 337; Mart. 7, 1, 1.— Dat. thoracibus, Val. Fl. 3, 87.—Gen. thoracum, Claud. in Ruf. 2, 260.
* A bust, Treb. Claud. Goth. 3.
Charlton T. Lewis, Charles Short, A Latin Dictionary