orb, toroid, quasicrystal, tetrahedron, planetesimal, clawlike, dodecahedron, ellipsoid, icosahedral, globule, radula, palps, spadix, ovipositor, fletching, umbels, remanent, rhombus, octahedron, tubercle, pelvic fin, parabola, sepal, isosceles, magnetopause, inflorescence, plastron, polyhedron, footpad, isosceles triangle, asymptote, pentagons, circlet, phalanges, lamellae, microelectrode, featherlike, conic, wormlike, concavity, calyx, dihedral, sphericity, chromophore, spathe, punctate, crinoid, femora, forelimb, condyles, equilateral triangle, concretion, retroreflector, spiderlike, martensite, buckyball, plumb bob, cuboid, cumulus cloud, indention, pontil, nebular, swatter, dextral, floret, torus, headpin, protuberances, micrograph, spinneret, peapod, bilaterally symmetrical, midrib, mouthparts, azimuthal, trabeculae, noggin, trapezium, drupe, mantling, endoskeleton, integument, awns, metamorphic rock, covalent bond, dicer, ellipse, dipolar, rachis, golfball, forewings, toecap, caudal fin, cotyledons, blastema, catkin, sinistral, daddy longlegs, hummocks, panicles, corrugations, prokaryote, spheroids, ellipsoids, cylinder, hexagon, parallelogram, rectangle, nebula, cone, globe, hoop, quadrilateral, square, rectangular, disk, ellipses, parallelepiped, quadrangle, globular, spheroidal, discoid, ovoid, polypoid, subspherical, asexual, biconical, cartilaginous, chondral, coccoid, compact, cylindric, cylindrical, discoidal, ellipsoidal, fibrous, fungous, hemispherical

genus melocactus, melocactus, prolate

round shape

ellipsoid of revolution