hypothalamus [ˌhʌɪpə(ʊ)ˈθaləməs] (pl. hypothalami -mʌɪ)
(Anatomy)a region of the forebrain below the thalamus which coordinates both the autonomic nervous system and the activity of the pituitary, controlling body temperature, thirst, hunger, and other homeostatic systems, and involved in sleep and emotional activity (剖)丘脑下部,下丘脑