hy·po·thy·roid·ism
noun/ˌhaɪpəʊˈθaɪrɔɪdɪzəm/
/ˌhaɪpəʊˈθaɪrɔɪdɪzəm/
[uncountable] (medical)- a condition in which the thyroid is not active enough, which can cause problems such as feeling very tired and gaining weight, and in a child can cause slower growth
甲状腺不够活跃的情况，可能会导致感觉非常疲倦和体重增加等问题，并且在儿童中可能会导致生长缓慢