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.