ellipse Definition

oval, momental, isosceles triangle, rectangle, ellipsoid, equilateral triangle, conic, parallelogram, parabola, trapezoid, triangular prism, celestial sphere, hexagon, ecliptic, rhombus, tetrahedron, arcsecond, asterism, zodiacal light, hypotenuse, centroid, radii, nebulosity, curvature, dodecahedron, celestial equator, convex, syrtis major, moonlet, horsehead nebula, semicircles, vertices, conic section, infinity, quasicrystal, torus, hexagram, polyhedron, epsilon aurigae, convex lens, milky way galaxy, spiral galaxy, concavity, heliopause, galactic equator, geoid, eclipsing binary, oblique angle, gnomon, auroral, omega centauri, cumulus cloud, blackbody, ellipsoid of revolution, photosphere, anisotropy, prograde, diagonals, isosceles, toroid, squiggle, planetary nebula, andromeda galaxy, pentagons, oort cloud, concave, oculus, radians, cirrus cloud, photometry, chromosphere, apse, diameter, starburst, equinoxes, spheroid, sidereal, interferometer, dipole moment, retroreflector, circumference, armillary sphere, nebula, cartesian coordinates, caudal fin, orb, frustum, earthshine, quincunx, geometry, oblate, whorls, euclidean, pushpin, icosahedral, capricornus, synclinal, orbits, coronagraph, protrusion,