Lewis Short
(adjective) : tractŭōsus, a, um, traho
* That draws to itself, clammy, gluey, viscous (late Lat.): sudor crassus et tractuosus atque viscosus,Cael. Aur. Acut. 2, 32, § 167: semen,Theod. Prisc. 4, 2 med.
Charlton T. Lewis, Charles Short, A Latin Dictionary