efflorescence Meaning, Definition & Usage
- 
       noun the period of greatest prosperity or productivity
       
       
 prime; flower; blossom; peak; flush; bloom; heyday.
 
- 
       noun any red eruption of the skin
       
       
 skin rash; roseola; rash.
 
- 
       noun the time and process of budding and unfolding of blossoms
       
       
 blossoming; florescence; anthesis; flowering; inflorescence.
 
- 
       noun a powdery deposit on a surface
       
       
 bloom.
 
WordNet
Ef`flo*res"cence noun
Etymology
F.Definitions
-  (Bot.) Flowering, or state of flowering; the blooming of flowers; blowth. 
-  (Med.) A redness of the skin; eruption, as in rash, measles, smallpox, scarlatina, etc. 
-  (Chem.) (a) The formation of the whitish powder or crust on the surface of efflorescing bodies, as salts, etc. (b) The powder or crust thus formed.