Synonyms for Efflorescence (same or very similar meaning)
WordNet sense 1 (the period of greatest prosperity or productivity):
bloom, blossom, flower, flush, heyday, peak, prime
WordNet sense 2 (any red eruption of the skin):
rash, roseola, skin rash
WordNet sense 3 (the time and process of budding and unfolding of blossoms):
blossoming, florescence, inflorescence, anthesis, flowering
From the ODE community, based on WordNet
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