HYPOTHYROID Meaning of HYPOTHYROID in English hypothyroid BrE AmE ˌhaɪp ə ʊ ˈθaɪ ə r ɔɪd ◂ AmE \ -oʊ-▷ hypothyroid|ism ˌɪz ə m Longman Pronunciation English Dictionary. Английский словарь произношений Longman. 2012