
Form Glossary Continued 
Concave a: Having negative (inward) curvature. Concavity n: Negative (inward) curvature. A depression in a surface. Cone v: To taper a surface by increasing the curvature of its crosssection over its length. Coning a: Describing the tapering of surface or highlights. 

Convex a: Having positive (outward) curvature. Convexity n: Positive (outward) curvature. A bulge in a surface. Crease n: A sharp, shallow edge where two surfaces meet. Crown n: A shallow convexity of surface. v: To add convexity to a surface. Cutline n: The break between two flush surfaces. A division between two panels. Dimple n: a distinct, concave surface depressed into a convex or shallower concave surface, delineated with a hard intersection. Opposite of blister. v: to depress a crisply delineated area of concavity into a surface. Edge n: The corner formed by two surfaces meeting at a positive angle without a transitional surface. Extrusion n: A shape with a constant crosssection. (also known as a Drag Section) Fillet n: A concave surface which acts as a tangential transition between two intersecting surfaces. v: To smoothly transition two or more surfaces which meet at a negative angle. Flush a: Describing two or more unconnected surfaces that share the same plane. Hollow a: To have shallow concavity; or, in the case of a convex surface, to appear, in the context of the surrounding shapes, to have concavity. Lathe n: A shape with a radially constant crosssection. Also revolve. Ohgee n: An 'S'shaped switchback curve in a line or reflection, often caused by a blistered surface. 

Pooched [surface] a: An area of surface that has an increase of convex curvature from the surface around it. (kind of like a beerbelly) Also bulged. Radius n: A line segment extending from the center of a circle to its circumference. b: A curve defined by a given radius. c: A transitional surface between two or more adjacent surfaces which is characterized by a constant circular crosssection. v: To round out an edge between two surfaces by using transitional surface with a radial crosssection. Sheer a: Having very little crown, or convex curvature. Almost flat. Taut a: Having the appearance of tension. 
> Seeing Organic Form 