かいば 海馬 LinksSentence search for 海馬Sentence search for かいばSentence search for うみうまKanji details for 海 and 馬Edit in JMdict Noun1. seahorse; sea horseSee also タツノオトシゴNoun2. hippocampusOnly applies to かいばNoun3. walrusOnly applies to かいば, See also セイウチOther forms海馬 【うみうま】 Discussions Log in to talk about this word.