monoclinal

from WordNet (r) 3.0 (2006)

monoclinal
    adj 1: of a geological structure in which all strata are
           inclined in the same direction

from The Collaborative International Dictionary of English v.0.48

Monoclinal \Mon`o*cli"nal\, a. [See {Monoclinic}.] (Geol.)
   Having one oblique inclination; -- applied to strata that dip
   in only one direction from the axis of elevation.
   [1913 Webster]