sunrays, sunlight, sun, ultraviolet light, sunbeams, infrared radiation, ultraviolet, glow, ultraviolet radiation, prominences, photons, cathode rays, starlight, gamma rays, sundog, photosphere, chromosphere, radiations, refract, earthshine, spicules, wavelengths, coronagraph, nebula, golden glow, laser beam, cosmic rays, sunshine, nematocysts, anal fin, glints, opalescence, vortexes, neutrinos, emittance, diffraction grating, cumulus cloud, particles, dewdrops, iridescence, zodiacal light, corona, shimmer, dusks, antineutrinos, neutrons, photochemical reaction, luminosity, beams, novae, phosphorescence, aurorae, caudal fin, filaments, radiance, ions, muons, cosmic radiation, chimaeras, suckerfish, luminescence, chromophores, lanternfish, orb, magnetosphere, meteoroids, florescence, comet, perseids, lasers, skeeters, electrons, positrons, glowworms, haloes, fluorescence, airglow, spectroscope, polarimetry, galactic equator, infrared, droplets, glimmering, xenon, heliopause, cownose ray, moths, prisms, ejecta, antiprotons, alpenglow, cherenkov radiation, outflowing, trifid, epsilon aurigae, firefly, peepers, quadrantid, parabolic mirror, sunlamp, jellyfish, gravitons, ray, flares, sparks, bands, flame, stripes, flashes, fringes, halos, light, pencils, streaks, streamers, flames, lights, amide, dosage, fusiform, prismatic, r, rr, starlike, tangent, xt, 2000000, -1, -11, -2, -20, -3, .., 00, 01, 03, 1-1

., acanthopterygian, acanthopterygii, actinometry, alectis ciliaris, alpine gold, alpine hulsea, ametropia, angiocardiogram, antoine henri becquerel, arthur compton, arthur holly compton, aster, astigmatic, astigmatism, astigmia, astreus pteridis, atomic number 69, barberton daisy, barium enema, batoidei, beach aster, becquerel, birefringence, black-eyed susan, blackfoot daisy, blue succory, bombardment, bone age, brachycome iberidifolia, burn, cat, catananche caerula, cobalt 60, collimator, common madia, common tarweed, compton, computed axial tomography, computed tomography, computerized axial tomography, computerized tomography, coneflower, contrast material, contrast medium, cosmic radiation, cosmic ray, crookes, ct, cupid's dart, cutleaved coneflower, daisy-bush, daisybush, daisy bush, dasyatidae, dental hygienist, diffraction, diffused, discover, dosemeter, dosimeter, double refraction, effulgence, elasmobranch, elasmobranchii, emit, erigeron divergens, erigeron glaucous, erigeron philadelphicus, erigeron pulchellus, erigeron speciosus, erythema solare, family dasyatidae, family mobulidae, family myliobatidae, family pristidae, family rajidae, family rhinobatidae, family torpedinidae, felicia bergeriana, focused, focussed, gazania rigens, geastrum coronatum, genus gymnura, genus packera, gerbera jamesonii, gutierrezia microcephala, gymnura, havelock, helenium hoopesii, helianthus, heliogram, heliograph, henri becquerel, hermann joseph muller, hieracium aurantiacum, hulsea algida, illuminating, incurvate, insolate, irradiate, kingfisher daisy, layia platyglossa, lenard, little-head snakeweed, little golden zinnia, machaeranthera bigelovii, machaeranthera tanacetifolia, madia elegans, malacopterygii, mammography, melampodium leucanthum, mellowingly, mexican hat, mexican sunflower, mobulidae, muller, mutagenic, myliobatidae, nit, nuclear winter, oblique, orange hawkweed, orange sneezeweed, order batoidei, order rajiformes, order torpediniformes, owlclaws, oxeye, packera, pencil, perpetually, pet scanner, philadelphia fleabane, philipp lenard, pilosella aurantiaca, positron emission tomography scanner, powder method, powder photography, powder technique, pristidae, radial, radiance, radiancy, radiate, radiation, radio-opacity, radio-opaque, radioactivity, radiogram, radiograph, radiologist, radiology, radiolucent, radiopacity, radiopaque, radiopaque dye, radioscopy, radiotherapist, radiotherapy equipment, rainbow, rajidae, rajiformes, ratibida columnaris, ray, rayless, reflection, reflectivity, reflexion, refulgence, refulgency, rem, rhinobatidae, robin's plantain, roentgen, roentgenogram, roentgenography, rontgen, rudbeckia hirta, rudbeckia laciniata, rudbeckia serotina, seaside daisy, selachian, selachii, shade, shadiness, shadowgraph, shadowiness, shine, showy daisy, sir william crookes, skate, skiagram, skiagraph, solarisation, solarise, solarization, solarize, solar collector, solar dish, solar furnace, spiny-finned fish, spreading fleabane, stellate, sticky aster, stigmatism, subclass elasmobranchii, subclass selachii, sun, sunburn, sunflower, sunlight, sunshine, suntan, superorder acanthopterygii, superorder malacopterygii, swan river daisy, tahoka daisy, tan, tansy leaf aster, teratogen, thread-fish, threadfin, threadfish, thulium, tidytips, tidy tips, tithonia, tm, torpedinidae, torpediniformes, transvaal daisy, treasure flower, twilight, ultraviolet, ultraviolet illumination, ultraviolet light, ultraviolet radiation, unfractured, uv, van allen belt, visually impaired, vitalizing, white-rayed mule's ears, white zinnia, wilhelm konrad roentgen, wilhelm konrad rontgen, william crookes, wyethia helianthoides, x-radiation, x-ray, x-raying, x-ray diffraction, x-ray machine, x-ray photograph, x-ray photography, x-ray picture, x-ray therapy, x-ray tube, xeroradiography, x ray, zinnia acerosa, zinnia grandiflora