curve

arc arch contour loop trajectory

ambit bend bight bow camber catenary chord circle circuit circumference compass concavity crook curlicue curvature ellipse festoon flexure hairpin half-moon helix horseshoe hyperbola incurvation incurvature meniscus ogee parabola quirk round sinuosity sweep swerve turn vault whorl

curvation rondure

line

bend buckle bulge coil crumple curl loop skew spiral swerve twist veer

arc arch bow crook deviate divert gyrate hook inflect round snake stoop turn wind wreathe

concave convex incurve

straighten

stay