noun
great seahorse; Kellogg's seahorse; offshore seahorse
Refers specifically to the species Hippocampus kelloggi, a large seahorse found in the Indo-Pacific. In Japanese, the katakana name is the standard form.
オオウミウマはインド太平洋に生息する大型のタツノオトシゴの一種です。
The great seahorse is a large species of seahorse that inhabits the Indo-Pacific.
Katakana spelling is standard for this species name; usually written in kana.
Kanji spelling exists but is rarely used; the katakana form is strongly preferred.
Compound of 大 (おお, 'big') + 海馬 (うみうま, 'seahorse'). The kanji 海馬 literally means 'sea horse'.