n. 1. The scientific study of periodic biological phenomena, such as flowering, breeding, and migration, in relation to climatic conditions. 2. The timing of a periodic biological phenomenon in relation to climatic conditions. [PHENO(MENON) + -LOGY.] phe′no·logi·cal (fē′nə-lŏjĭ-kəl) adj. phe′no·logi·cal·ly adv. phe·nolo·gist n. |
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