Lewis Short
styrax | stŏrax, a, um | styrăcĭnus (noun M) = στύραξ: (, Sol. 33 med.; Isid. Orig. 17, 8, 5)
* A tree; and also the resinous gum of that tree, storax, Plin. 12, 25, 55, § 125; 24, 6, 15, § 24; Verg. Cir. 167.—Hence, , , of or made from storax: oleum,Cael. Aur. Tard. 2, 7.
Charlton T. Lewis, Charles Short, A Latin Dictionary