curvation

arch

bend bow crescent curvature half-moon round

angle arc bending bow corner crook curvature deflection deviation flection flexure hook lean loop round sag shift tack tilt turn twist yaw zigzag

stagnation

line

angle arc arch bend curvature curve flection flexure inclination round turn

nod

line

straighten

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

rondure

line

angle arc arch bend bending bob curtsy curvature curve flection flexure inclination kowtow nod obeisance round salaam turn turning

line

arc arch band bend bow circle circlet curvature curve disc disk equator eye gyre hoop loop orb orbit ring ringlet sphere wheel

line