English

Definition of hippopotamus noun from the Oxford Advanced Learner's Dictionary

 

hippopotamus

 noun
noun
BrE BrE//ˌhɪpəˈpɒtəməs//
 
; NAmE NAmE//ˌhɪpəˈpɑːtəməs//
 
(informal hippo) (pl. hippopotamuses
BrE BrE//ˌhɪpəˈpɒtəməsɪz//
 
; NAmE NAmE//ˌhɪpəˈpɑːtəməsɪz//
 
, hippopotami
BrE BrE//ˌhɪpəˈpɒtəmaɪ//
 
; NAmE NAmE//ˌhɪpəˈpɑːtəmaɪ//
 
)
Wild mammals
 
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a large heavy African animal with thick dark skin and short legs, that lives in rivers and lakes See related entries: Wild mammals Word Origin Middle English: via Latin from Greek hippopotamos, earlier hippos ho potamios ‘river horse’ (from hippos ‘horse’, potamos ‘river’).
See the Oxford Advanced American Dictionary entry: hippopotamus