The Collaborative International Dictionary of English v.0.48:
Florescence \Flo*res"cence\, n. [See Florescent.] (Bot.) A bursting into flower; a blossoming. --Martyn. [1913 Webster]WordNet (r) 3.0 (2006):
florescence n 1: the time and process of budding and unfolding of blossoms [syn: blossoming, flowering, florescence, inflorescence, anthesis, efflorescence]