(from the article `fold`) An anticline is a fold that is convex upward, and a syncline is a fold that is concave upward (Figure 2). An anticlinorium is a large anticline on ... Found on http://www.britannica.com/eb/a-z/a/82
An`ti·cli·no'ri·um noun ; plural Anticlinoria [ New Latin , from Greek ... against + kli`nein to incline + 'o`ros mountain.] (Geol.) The upward elevation of the crust of the earth, resulting from a geanticlinal. Found on http://www.encyclo.co.uk/webster/A/95