ステラーかいぎゅうMeanings1nounSteller's sea cowusually written using kana aloneAn extinct marine mammal (Hydrodamalis gigas). Scientific or historical context.ステラー海かい牛ぎゅうは18世せい紀きに絶ぜつ滅めつした。Steller's sea cow became extinct in the 18th century.
