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phenothiazine
phenotype
phenoxide
phenyl
phenylalanine
phenylbutazone
phenylenediamine
phenylephrine
phenylethyl alcohol
phenylketonuria
phenylpropanolamine
phenylthiocarbamide
phenytoin
pheromone
phew
PHI
phi
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phenology
phe·nol·o·gy [ fi nólləjee ] (plural phe·nol·o·gies)


noun 
Definition:
 
1. study of biological phenomena interacting with climate: the study of regularly recurring biological phenomena such as animal migrations or plant budding, especially as influenced by climatic conditions
2. effect of seasonal cycle on biological phenomenon: the relationship between a regularly recurring biological phenomenon and climatic or environmental factors that may influence it
[Late 19th century. <phenomenon]

phe·no·log·i·cal [ fnə lójjik'l ] adjective
phe·nol·o·gist [ fi nólləjist ] noun
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