dēpressĭo — Lewis & Short
dēpressĭo, ōnis, f.deprimo,
I a pressing or sinking down, a depression (not ante-Aug., and very rare), Macr. S. 1, 20:
fundamentorum ad solidum,Vitr. 1, 3, 2: Socratica nasi, i. e. flat nose (opp. curva erectio), Macr. S. 7, 3, § 11.