海馬 かいば Also written うみうま Meanings Noun seahorse; sea horse See also: タツノオトシゴ. hippocampus walrus See also: セイウチ. Kanji 海 sea. Read as カイ. 馬 horse. Read as バ. Words containing 海馬 海馬傍回 (かいばぼうかい) parahippocampal gyrus 海馬回 (かいばかい) parahippocampal gyrus 海馬状隆起 (かいばじょうりゅうき) hippocampus And 1 more. Jinuma: Japanese Dictionary · Word lists