Lewis Short
prōclīnātĭo (noun F) : proclino
* A bending or inclining forwards: in concreto, a slope, declivity (Vitruvian), Vitr. 5, 12, 4.— In plur.: ne structurae habeant ullā in parte proclinationes,Vitr. 6, 11.
Charlton T. Lewis, Charles Short, A Latin Dictionary