e·thol·o·gy (ĭ-thŏlə-jē, ē-thŏl-)
1. The scientific study of animal behavior, especially as it occurs in a natural environment.
2. The study of human ethos and its formation.
[French éthologie, from Latin ēthologia, art of depicting character, from Greek ēthologiā : ēthos, character; see ETHOS + logos, speech, expression; see -LOGY.]
eth′o·logi·cal (ĕth′ə-lŏjĭ-kəl) adj.
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