(n.) A bow or arch exhibiting, in concentric bands, the several colors of the spectrum, and formed in the part of the hemisphere opposite to the sun by the refraction and reflection of the sun's rays in drops of falling rain.

Amytal Amytal pill Dalmatian Demerol Dolophine H Luminal Luminal pill M Mickey Finn Nembutal Nembutal pill Seconal Seconal pill Tuinal Tuinal pill alcohol amobarbital sodium analgesic angry clouds anodyne anthelion antigorite antisun aura aureole barb barbiturate barbiturate pill black cat black clouds black stuff blue blue angel blue devil blue heaven blue velvet broken mirror butterfly calmative candy cane chameleon cheetah chimera chloral hydrate chromatic chrysotile circle codeine codeine cough syrup cold colorific coloring confetti cool corona countersun crazy quilt depressant depressor dichromatic dolly downer dream fantasy firedog gathering clouds glory glowing goofball halcyon bird halo hard stuff harlequin harmonious heroin hop horse hypnotic illusion iridescence iris jaguar junk knockout drops laudanum leopard liquor lotus lunar corona lunar halo mackerel mackerel sky many-colored marble marbled paper matching medley meperidine methadone mock moon mock sun moire monochromatic monochrome monochromic moon dog morphia morphine mother-of-pearl mother-of-pearl cloud motley nacre nacreousness narcotic nimbus ocelot opal opalescence ophite opiate opium owl pacifier pain killer paraselene paregoric parhelic circle parhelion parti-colored patchwork quilt peacock pearliness pen yan phenobarbital phenobarbital sodium pigmentary pipe polychromatic prismatic purple heart quietener raven red ring scag secobarbital sodium sedative serpentine serpentine marble shit shooting star shot silk sleep-inducer sleeper sleeping draught sleeping pill smack sodium thiopental solar corona solar halo somnifacient soother soothing syrup soporific spectral spectrum storm clouds stormy petrel sun dog tar thundercloud thunderhead tinctorial tingent toning tortoise shell tranquilizer turps variegated warm white stuff yellow yellow jacket zebra