hypothalamus
noun [ S ] anatomy specialized uk/ˌhaɪ.pəʊˈθæl.ə.məs/ us/ˌhaɪ.poʊˈθæl.ə.məs/
下丘脑（大脑的一个小部分，位于丘脑下面，控制体温、荷尔蒙分泌等）
a small part in the brain that controls things such as body temperature and the release of hormones, that is below the thalamus