English words and phrases

kink.

sine curve; spline, spline curve, spline function; obliquity &c 217.

render curved &c adj.; flex, bend, curve, incurvate^†; inflect; deflect, scatter [Phys.]; refract (light) 420; crook; turn, round, arch, arcuate, arch over, concamerate^†; bow, curl, recurve, frizzle.

rotundity &c 249; convexity &c 250.

Adj. curved &c v.; curviform^†, curvilineal^†, curvilinear; devex^†, devious; recurved, recurvous^†; crump^†; bowed &c v.; vaulted, hooked; falciform^†, falcated^†; semicircular, crescentic; sinusoid [Geom.], 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 &c (distorted) 243; oblique &c 217; circular &c 247.

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^†.

render straight, straighten, rectify; set straight, put straight; unbend, unfold, uncurl &c 248, unravel &c 219, unwrap.

laser-straight; ramrod-straight.

circle, circlet, ring, areola, hoop, roundlet^†, annulus, annulet^†, bracelet, armlet; ringlet; eye, loop, wheel; cycle, orb, orbit, rundle, zone, belt, cordon, band; contrate wheel^†, crown wheel; hub; nave; sash, girdle, cestus^†, cincture, baldric, fillet, fascia, wreath, garland; crown, corona, coronet, chaplet, snood, necklace, collar; noose, lasso, lassoo^†.

ellipse, oval, ovule; ellipsoid, cycloid; epicycloid [Geom.], epicycle; semicircle; quadrant, sextant, sector.

sphere &c 249.

go round; encircle &c 227; describe a circle &c 311.

coil, roll, curl; buckle, spiral, helix, corkscrew, worm, volute, rundle; tendril; scollop^†, scallop, escalop^†; kink; ammonite, snakestone^†.

serpent, eel, maze, labyrinth.

knot.

wreathy^†, frizzly, crepe, buckled; raveled &c (in disorder) 59.

spiral, coiled, helical; cochleate, cochleous; screw-shaped; turbinated, turbiniform^†.

Adv. in and out, round and round; a can of worms; Gordian knot.
249. Rotundity -- N. rotundity; roundness &c adj.; cylindricity^†; sphericity, spheroidity^†; globosity^†.

cylinder, cylindroid^†, cylindrical; barrel, drum; roll, roller; rouleau^†, column, rolling-pin, rundle.

cone, conoid^†; pear shape, egg shape, bell shape.

sphere, globe, ball, boulder, bowlder^†; spheroid, ellipsoid; oblong spheroid; oblate spheroid, prolate spheroid; drop, spherule, globule, vesicle, bulb, bullet, pellet, pelote^†, clew, pill, marble, pea, knob, pommel, horn; knot (convolution) 248.

curved surface, hypersphere; hyperdimensional surface.

V. render spherical &c adj.; form into a sphere, sphere, roll into a ball; give rotundity &c n.; round.

Adj. rotund; round &c (circular) 247; cylindric, cylindrical, cylindroid^†; columnar, lumbriciform^†; conic, conical; spherical, spheroidal; globular, globated^†, globous^†, globose; egg shaped, bell shaped, pear shaped; ovoid, oviform; gibbous; rixiform^†; campaniform^†, campanulate^†, campaniliform^†; fungiform^†, bead-like, moniliform^†, pyriform^†, bulbous; tres atque rotundus [Lat.]; round as an orange, round as an apple, round as a ball, round as a billiard ball, round as a cannon ball.
3. SUPERFICIAL FORM
250. Convexity -- N. convexity, prominence, projection, swelling, gibbosity^†, bilge, bulge, protuberance, protrusion; camber, cahot [U.S.].

thank-ye-ma'am [U.S.].

swell.

intumescence; tumour [Brit.], tumor; tubercle, tuberosity [Anat.]; excrescence; hump, hunch, bunch.

peg, button, stud, ridge, rib, jutty, trunnion, snag.

cupola, dome, arch, balcony, eaves; pilaster.

relief, relievo [It], cameo; bassorilievo^†, mezzorilevo^†, altorivievo; low relief, bas relief [Fr.], high relief.

hill &c (height) 206; cape, promontory, mull; forehead, foreland^†; point of land, mole, jetty, hummock, ledge, spur; naze^†, ness.

V. be prominent &c adj.; project, bulge, protrude, pout, bouge [Fr.], bunch; jut out, stand out, stick out, poke out; stick up, bristle up, start up, cock up, shoot up; swell over, hang over, bend over; beetle.

render prominent &c adj.; raise 307; emboss, chase.

salient, in relief, raised, repousse; bloated &c, (expanded) 194.

plane; level &c 213; plate, platter, table, tablet, slab.

cup, basin, crater, punch bowl; cell &c (receptacle) 191; socket.

valley, vale, dale, dell, dingle, combe^†, bottom, slade^†, strath^†, glade, grove, glen, cave, cavern, cove; grot^†, grotto; alcove, cul-de-sac; gully &c 198; arch &c (curve) 245; bay &c (of the sea) 343.

excavator, sapper, miner.

honeycomb (sponge) 252.1.

V. be concave &c adj.; retire, cave in.

render concave &c adj.; depress, hollow; scoop, scoop out; gouge, gouge out, dig, delve, excavate, dent, dint, mine, sap, undermine, burrow, tunnel, stave in.

sieve, net, screen (opening) 260.

point, spike, spine, spicule [Biol.], spiculum^†; needle, hypodermic needle, tack, nail, pin; prick, prickle; spur, rowel, barb; spit, cusp; horn, antler; snag; tag thorn, bristle; Adam's needle^†, bear grass [U.S.], tine, yucca.

nib, tooth, tusk; spoke, cog, ratchet.

crag, crest, arete [Fr.], cone peak, sugar loaf, pike, aiguille^†; spire, pyramid, steeple.

beard, chevaux de frise [Fr.], porcupine, hedgehog, brier, bramble, thistle; comb; awn, beggar's lice, bur, burr, catchweed^†, cleavers, clivers^†, goose, grass, hairif^†, hariff, flax comb, hackle, hatchel^†, heckle.

wedge; knife edge, cutting edge; blade, edge tool, cutlery, knife, penknife, whittle, razor, razor blade, safety razor, straight razor, electric razor; scalpel; bistoury^†, lancet; plowshare, coulter, colter^†; hatchet, ax, pickax, mattock, pick, adze, gill; billhook, cleaver, cutter; scythe, sickle; scissors, shears, pruning shears, cutters, wire cutters, nail clipper, paper cutter; sword &c (arms) 727; bodkin &c (perforator) 262; belduque^†, bowie knife^†, paring knife; bushwhacker [U.S.]; drawing knife, drawing shave; microtome [Micro.]; chisel, screwdriver blade; flint blade; guillotine.

sharpener, hone, strop; grindstone, whetstone; novaculite^†; steel, emery.

V. be sharp &c adj.; taper to a point; bristle with.

render sharp &c adj.; sharpen, point, aculeate, whet, barb, spiculate^†, set, strop, grind; chip (flint).

cut &c (sunder) 44.

Adj. sharp, keen; acute; acicular, aciform^†; aculeated^†, acuminated^†; pointed; tapering; conical, pyramidal; mucronate^†, mucronated^†; spindle shaped, needle shaped; spiked, spiky, ensiform^†, peaked, salient; cusped, cuspidate, cuspidated^†; cornute^†, cornuted^†, cornicultate^†; prickly; spiny, spinous^†, spicular; thorny, bristling, muricated^†, pectinated^†, studded, thistly, briary^†; craggy &c (rough) 256; snaggy, digitated^†, two-edged, fusiform [Micro.]; dentiform^†, denticulated; toothed; odontoid^†; starlike; stellated^†, stelliform^†; sagittate^†, sagittiform^†; arrowheaded^†; arrowy^†, barbed, spurred.

acinaciform; apiculate^†, apiculated^†; aristate^†, awned, awny^†, bearded, calamiform^†, cone-shaped, coniform^†, crestate^†, echinate^†, gladiate^†; lanceolate^†, lanciform; awl, awl-shaped, lance-shaped, awl-shaped, scimitar-shaped, sword-shaped; setarious^†, spinuliferous^†, subulate^†, tetrahedral, xiphoid^†.

cutting; sharp edged, knife edged; sharp as a razor, keen as a razor; sharp as a needle, sharp as a tack; sharpened &c v.; set
254. Bluntness -- N. bluntness &c adj..

V. be blunt, render blunt &c adj.; obtund^†, dull; take off the point, take off the edge; turn.

Adj. blunt, obtuse, dull, bluff; edentate, toothless.
255. Smoothness -- N. smoothness &c adj.; polish, gloss; lubricity, lubrication.

[smooth materials] down, velvet, velure, silk, satin; velveteen, velour, velours, velumen^†; glass, ice.

slide; bowling green &c (level) 213; asphalt, wood pavement, flagstone, flags.

brush, hair, beard, shag, mane, whisker, moustache, imperial, tress, lock, curl, ringlet; fimbriae, pili, cilia, villi; lovelock; beaucatcher^†; curl paper; goatee; papillote, scalp lock.

plumage, plumosity^†; plume, panache, crest; feather, tuft, fringe, toupee.

wool, velvet, plush, nap, pile, floss, fur, down; byssus^†, moss, bur; fluff.

knot (convolution) 248.

V. be rough &c adj.; go against the grain.

render-rough &c adj.; roughen, ruffle, crisp, crumple, corrugate, set on edge, stroke the wrong way, rumple.

downy, velvety, flocculent, woolly; lanate^†, lanated^†; lanuginous^†, lanuginose^†; tomentose^†; fluffy.

embrasure, battlement, machicolation^†; saw, tooth, crenelle^†, scallop, scollop^†, vandyke; depression; jag.

channel, gutter, trench, ditch, dike, dyke; moat, fosse^†, trough, kennel; ravine &c (interval) 198; tajo [U.S.], thank-ye-ma'am [U.S.].

opening; aperture, apertness^†; hiation^†, yawning, oscitancy^†, dehiscence, patefaction^†, pandiculation^†; chasm &c (interval) 198.

embrasure, window, casement; abatjour^†; light; sky light, fan light; lattice; bay window, bow window; oriel [Arch.]; dormer, lantern.

outlet, inlet; vent, vomitory; embouchure; orifice, mouth, sucker, muzzle, throat, gullet, weasand^†, wizen, nozzle; placket.

portal, porch, gate, ostiary^†, postern, wicket, trapdoor, hatch, door; arcade; cellarway^†, driveway, gateway, doorway, hatchway, gangway; lich gate^†.

way, path &c 627; thoroughfare; channel; passage, passageway; tube, pipe; water pipe &c 350; air pipe &c 351; vessel, tubule, canal, gut, fistula; adjutage^†, ajutage^†; ostium^†; smokestack; chimney, flue, tap, funnel, gully, tunnel, main; mine, pit, adit^†, shaft; gallery.

alley, aisle, glade, vista.

bore, caliber; pore; blind orifice; fulgurite^†, thundertube^†.

porousness, porosity.

sieve, cullender^†, colander; cribble^†, riddle, screen; honeycomb.

apertion^†, perforation; piercing &c v.; terebration^†, empalement^†, pertusion^†, puncture, acupuncture, penetration.

key &c 631, opener, master key, password, combination, passe-partout.

perforate, pierce, empierce^†, tap, bore, drill; mine &c (scoop out) 252; tunnel; transpierce^†, transfix; enfilade, impale, spike, spear, gore, spit, stab, pink, puncture, lance, stick, prick, riddle, punch; stave in.

cut a passage through; make way for, make room for.

uncover, unclose, unrip^†; lay open, cut open, rip open, throw open, pop open, blow open, pry open, tear open, pull open.