efflorescence

Noun

Synonyms: flower prime peak heyday bloom blossom flush rash roseola skin rash blossoming flowering

WordNet 3.0

Noun (4)

the period of greatest prosperity or productivitySynonyms: flower prime peak heyday bloom blossom flush
any red eruption of the skinSynonyms: rash roseola skin rash
the time and process of budding and unfolding of blossomsSynonyms: blossoming flowering florescence inflorescence anthesis
a powdery deposit on a surfaceSynonyms: bloom

Webster's Dictionary (GCIDE)

Efflorescence \Ef`flo*res"cence\, n. [F. efflorescence.]

1.(Bot.) Flowering, or state of flowering; the blooming of flowers; blowth. [1913 Webster]

2.(Med.) A redness of the skin; eruption, as in rash, measles, smallpox, scarlatina, etc. [1913 Webster]

3.(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. [1913 Webster]