1.  incurvation(n = noun.shape) concave shape, concavity, incurvature - a shape that curves or bends inward; Array
is a kind of solid
has particulars: dome, fossa, pit, corner, niche, recess, recession, bowl, trough, pocket, scoop, depression, impression, imprint, cup, indentation, indenture
Derived forms verb incurvate₂, verb incurvate₁

2.  incurvation(n = noun.act) Array - the action of creating a curved shape; Array
is a kind of bending
Derived forms verb incurvate₂, verb incurvate₁

1.  The act of bending, or curving. [1913 Webster]

2.  The state of being bent or curved; curvature. [1913 Webster]
"An incurvation of the rays." [1913 Webster]

3.  The act of bowing, or bending the body, in respect or reverence. Bp. Hall. [1913 Webster]

N  curvature, curvity, curvation, incurvature, incurvity, incurvation, bend, flexure, flexion, flection, conflexure, crook, hook, bought, bending, deflection, deflexion, inflection, inflexion, concameration, arcuation, devexity, turn, deviation, detour, sweep, curl, curling, bough, recurvity, recurvation, sinuosity, kink, carve, arc, arch, arcade, vault, bow, crescent, half-moon, lunule, horseshoe, loop, crane neck, parabola, hyperbola, helix, spiral, catenary, festoon, conchoid, cardioid, caustic, tracery, arched ceiling, arched roof, bay window, bow window, sine curve, spline, spline curve, spline function, obliquity, curved, curviform, curvilineal, curvilinear, devex, devious, recurved, recurvous, crump, bowed, vaulted, hooked, falciform, falcated, semicircular, crescentic, sinusoid, parabolic, paraboloid, luniform, lunular, semilunar, conchoidal, helical, double helical, spiral, kinky, cordiform, cordated, 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, lenticular, bow-legged, oblique, circular, aduncated, arclike, arcuate, arched, beaked, bicorn, bicornuous, bicornute, clypeate, clypeiform, cymbiform, embowed, galeiform, hamate, hamiform, hamous, hooked, linguiform, lingulate, lobiform, lunate, navicular, peltate, remiform, rhamphoid, rostrate, rostriferous, rostroid, scutate, scaphoid, uncate, unguiculate, unguiform.