hy ‧ po ‧ ther ‧ mi ‧ a /ˌhaɪpəʊˈθɜːmiə $ -poʊˈθɜːr-/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Language: Modern Latin ; Origin: hypo- + Greek therme 'heat' ]
a serious medical condition caused by extreme cold
hy ‧ po ‧ ther ‧ mi ‧ a /ˌhaɪpəʊˈθɜːmiə $ -poʊˈθɜːr-/ BrE AmE noun [uncountable]
[ Date: 1800-1900 ; Language: Modern Latin ; Origin: hypo- + Greek therme 'heat' ]
a serious medical condition caused by extreme cold
Longman Dictionary of Contemporary English. Longman - Словарь современного английского языка. 2012