hip·po·cam·pus
noun/ˌhɪpəˈkæmpəs/
/ˌhɪpəˈkæmpəs/
(plural hippocampi
(anatomy)/ˌhɪpəˈkæmpaɪ/, /ˌhɪpəˈkæmpi/
/ˌhɪpəˈkæmpaɪ/, /ˌhɪpəˈkæmpi/
)- either of the two areas of the brain thought to be the centre of emotion and memory
海马（大脑中被认为是感情和记忆中心的部分） Word Originlate 16th cent.: via Latin from Greek hippokampos, from hippos ‘horse’ + kampos ‘sea monster’.