| Efflorescence 1. (n.) Flowering, or state of flowering; the blooming of flowers. 2. (n.) A redness of the skin; eruption, as in rash, measles, smallpox, scarlatina, etc. 3. (n.) The formation of the whitish powder or crust on the surface of efflorescing bodies, as salts, etc. 4. (n.) The powder or crust thus formed. Thesaurus Entries air, attritus, badness, bran, contamination, cosmic dust, crumb, crumble, dust, dust ball, efflorescence, fallout, farina, filings, flour, grits, groats, harmfulness, health hazard, injuriousness, insalubriousness, insalubrity, kittens, lint, meal, menace to health, noise pollution, noisomeness, noxiousness, pathenogenicity, pollution, powder, pussies, raspings, sawdust, smut, soot, unhealthfulness, unhealthiness, unsalutariness, unwholesomeness, water |