hypothalamo-

Noun

hypothalamus (plural hypothalami or hypothalamuses)

1. A region of the forebrain located below the thalamus, forming the basal portion of the diencephalon, and functioning to regulate body temperature, some metabolic processes and governing the autonomic nervous system.
   • To avoid catastrophe, the brain has its trusty control centre, the hypothalamus, which tells the body to cool itself by sweating or to warm itself by shivering.2019, Bill Bryson, The Body: A Guide for Occupants, Black Swan (2020), page 217