blue moon Definition

rarity, hart, rare, age, rodgers, down, earth, ether, heaven, low, moderator, pale, peer, half-moon, man, sky, calypso, cry, mope, pass, sea, shot, moonbeam, galatea, black, bluestocking, bugloss, cobalt, cold, coleus, color, cop, deneb, despondent, diamond, dog violet, fin, geranium pratense, giant, glum, guinea, guppy, heath violet, heather, imac, inky, isle, jets, jupiter, lavender, mackerel, meadow clary, meadow cranesbill, negative, night, opah, oriole, pales, palmetto flag, pleiades, rainbow, roller, salvia pratensis, slat, spica, squill, stone, stonechat, stoned, stoning, stratus, strike, sullen, ultramarine, ump, uranus, viola canina, woe, almanac, arc, aureole, below, calendar, cloud, come, earthed, earthing, ecliptic, heavenly, horoscope, lunette, mare, omen, peering, penumbra, perigee, primum mobile, quarter, quarters, root,