also: こうイカ
noun
golden cuttlefish; cuttlefish (family Sepiidae)
Refers specifically to Sepia esculenta, a common edible cuttlefish in Japan, but can also be used broadly for any cuttlefish of the family Sepiidae.
市場で新鮮な甲烏賊を買った。
I bought fresh golden cuttlefish at the market.
コウイカの墨は料理に使われる。
Cuttlefish ink is used in cooking.
Compound of 甲 (こう, 'shell, carapace') and 烏賊 (いか, 'squid/cuttlefish'), referring to the prominent internal shell (cuttlebone) characteristic of cuttlefish.