#245.  Curvature. —­ N. curvature, curvity[obs3], curvation[obs3];
incurvature[obs3], incurvity|; incurvation[obs3]; bend; flexure, flexion, flection[obs3]; conflexure|; crook, hook, bought, bending; deflection, deflexion[obs3]; inflection, inflexion[obs3]; concameration[obs3]; arcuation[obs3], devexity|, turn, deviation, detour, sweep; curl, curling; bough; recurvity[obs3], recurvation[obs3]; sinuosity &c. 248.
     kink.
     carve, arc, arch, arcade, vault, bow, crescent, half-moon,
lunule[obs3], horseshoe, loop, crane neck; parabola, hyperbola; helix, spiral; catenary[obs3], festoon; conchoid[obs3], cardioid; caustic; tracery; arched ceiling, arched roof; bay window, bow window.
     sine curve; spline, spline curve, spline function; obliquity &c. 217. 
     V. be curved &c. adj[intrans].; curve, sweep, sway, swag, sag;
deviate &c. 279; curl, turn; reenter.
     [trans] render curved &c. adj.; flex, bend, curve, incurvate[obs3];
inflect; deflect, scatter[Phys]; refract (light) 420; crook; turn, round, arch, arcuate, arch over, concamerate[obs3]; bow, curl, recurve, frizzle.
     rotundity &c. 249; convexity &c. 250. 
     Adj. curved &c. v.; curviform[obs3], curvilineal[obs3], curvilinear;
devex|, devious; recurved, recurvous[obs3]; crump[obs3]; bowed &c. v.; vaulted, hooked; falciform[obs3], falcated[obs3]; semicircular, crescentic; sinusoid[Geom], parabolic, paraboloid; luniform[obs3], lunular[obs3]; semilunar, conchoidal[obs3]; helical, double helical, spiral; kinky; cordiform[obs3], cordated[obs3]; cardioid; heart shaped, bell shaped, boat shaped, crescent shaped, lens shaped, moon shaped, oar shaped, shield shaped, sickle shaped, tongue shaped, pear shaped, fig shaped; kidney-shaped, reniform; lentiform[obs3], lenticular; bow-legged &c. (distorted) 243; oblique &c. 217; circular &c. 247.
     aduncated[obs3], arclike[obs3], arcuate, arched, beaked; bicorn[obs3],
bicornuous[obs3], bicornute[obs3]; clypeate[obs3], clypeiform[obs3]; cymbiform[obs3], embowed[obs3], galeiform[obs3]; hamate[obs3], hamiform[obs3], hamous[obs3]; hooked; linguiform[obs3], lingulate[obs3]; lobiform[obs3], lunate, navicular[obs3], peltate[obs3], remiform[obs3], rhamphoid[obs3]; rostrate[obs3], rostriferous[obs3], rostroid[obs3]; scutate[obs3], scaphoid[obs3], uncate[obs3]; unguiculate[obs3], unguiform[obs3].

     #246.  Straightness. —­ N. straightness, rectilinearity[obs3],
directness; inflexibility &c. (stiffness) 323; straight line, right line, direct line; short cut. 
     V. be straight &c. adj.; have no turning; not incline to either side,
not bend to either side, not turn to either side, not deviate to either side; go straight; steer for &c. (directions) 278.
     render straight, straighten, rectify; set straight, put straight;
unbend, unfold, uncurl &c. 248, unravel &c. 219, unwrap. 
     Adj. straight; rectilinear, rectilineal[obs3]; direct, even, right,
true, in a line; unbent, virgate &c. v[obs3].; undeviating, unturned, undistorted, unswerving; straight as an arrow &c. (direct) 278; inflexible &c. 323.
     laser-straight; ramrod-straight.