·noun The powder or crust thus formed.
II. Efflorescence ·noun Flowering, or state of flowering; the blooming of flowers; blowth.
III. Efflorescence ·noun A redness of the skin; eruption, as in rash, measles, smallpox, scarlatina, ·etc.
IV. Efflorescence ·noun The formation of the whitish powder or crust on the surface of efflorescing bodies, as salts, ·etc.