A picture of a hippopotamus.
From 河 meaning "river" + 馬 meaning "horse".
河馬 (hiragana かば, katakana カバ, romaji kaba)
- a hippopotamus, a hippo, a river horse
- a sea cow
Usage notes 
- The kanji spelling 河馬 is rarely used, and never used in science. The katakana カバ is more common, especially in scientific contexts.
- Hanja form? of 하마, “hippopotamus”.
河馬 (traditional, Pinyin hémǎ, simplified 河马)
- hippopotamus; hippo
Derived terms