Phenology \Phe*nol"o*gy\, n. [Contracted from {Phenomenology}.]
(Biol.)
The science of the relations between climate and periodic
biological phenomena, as the migrations and breeding of
birds, the flowering and fruiting of plants, etc. --
{Phe`no*log"ic*al}, a. -- {Phe`no*log"ic*al*ly}, adv. --
{Phe*nol"o*gist}, n.
[Webster 1913 Suppl.] Phenolphthalein