e·thol·o·gy 
(ĭ-thŏlə-jē, ē-thŏl-)
(ĭ-thŏlə-jē, ē-thŏl-)n.
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.
e·tholo·gist n.
- transmitter-receiver
- transmogrification
- transmogrify
- transmontane
- transmundane
- transmutability
- transmutable
- transmutably
- transmutation
- transmutational
- transmutative
- transmute
- transmuter
- transnational
- trans-Neptunian object
- Transnistria
- transoceanic
- transom
- transonic
- transp.
- transpacific
- transparency
- transparent
- transparently
- transpersonal