- Curvature (Substantives), curvation, incurvity, incurvation, bend, flexure, flexion, camber, bending, deflexion, inflexion, arcuation, diffraction, turn, deviation, detour, sweep, sinuosity, curl, curling, winding, recurvature, recurvation, refraction, flexibility 324.
- Straightness (Substantives), rectilinearity, directness.
- Simple circularity.
Fork, bifurcation, dichotomy.
A right angle, see Perpendicularity 212, salient and re-entrant angles, acute and obtuse angles.
A polygon, square, triangle, etc., lozenge, diamond, rhomb, etc., gore, gusset, wedge.
T-square, protractor, etc.
(Verbs). To bend, refract, diffract, crook, hook, fork, bifurcate, angulate, crinkle, crankle, splay.
(Adjectives). Angular, bent, crooked, hooked, aduncous, aquiline, jagged, serrated, falciform, falcated, furcated, forked, bifurcate, zigzag; dovetailed, knock-kneed, crinkled, akimbo, geniculated, polygonal, etc., fusiform, sagittate, arrow-headed, wedge-shaped, cuneate, cuneiform, splayed, angulate.
A curve, are, parabola, hyperbola, arch, arcade, vault, bow, crescent, half - moon, lunette, horse-shoe, loop, bight, crane-neck, conchoid, ogee, etc.
(Verbs). To be curved, etc., to bend, curve, etc., decline, turn, trend, deviate, re-enter, sweep.
To render curved; to bend, curve, incurvate, camber, deflect, inflect, crook, turn, round, arch, arcuate, bow, curl, recurve, loop, frizzle.
(Adjectives). Curved, bent, etc., curvilinear, curviform, recurved, recurvous, parabolic, hyperbolic, bowed, crooked, bandy, arched, vaulted, arcuated, hooked, falcated, falciform, crescent-shaped, semilunar, semicircular, conchoidal, lunular, lunulate, cordiform, heart-shaped, reniform; bow-kneed, bow-legged, bandy-legged, knock-kneed, devious.
A straight line, a right line, a direct line; inflexibility 323.
(Verbs). To be straight, etc.
To render straight, to straighten, rectify, set or put straight, take the curl out of, unbend, unfold, uncurl, uncoil, unroll, unwind, unravel, untwist, unwreathe, unwrap.
(Adjectives). Straight, rectilinear (or rectilineal), direct, even, right, in a line; unbent; not inclining, bending, turning, or deviating to either side; undeviating, unturned, undistorted, unswerving.
(Phrases). Straight as an arrow; as the crow flies.
Circularity (Substantives), roundness.
A circle, circlet, ring, areola, hoop, roundlet, annulus, annulet, bracelet, bangle, ringlet, eye, loop, wheel, cycle, orb, orbit, rundle, zone, belt, cordon, band, sash, girdle, cestus, cincture, baldric, fillet, cummerbund, fascia, wreath, garland, crown, corona, coronal, coronet, chaplet, necklace, rivière; noose, lasso.
An ellipse, oval, ovule, ellipsoid, cycloid, epicycloid, epicycle, etc.
(Verbs). To round, to circle, encircle, environ, etc. 227.
(Adjectives). Round, rounded, circular, annular, orbicular.
Oval, elliptical, elliptic, ovate, egg - shaped; cycloidal, etc., moniliform.