also: いかのふね
cuttlebone
Refers to the internal shell of a cuttlefish, often used as a calcium supplement for pet birds or for polishing. The term literally means 'squid boat' due to its shape.
See also: イカの甲
I bought a cuttlebone for my parakeet.
Standard spelling using katakana for イカ and kanji for 舟.
Kanji spelling for イカ; less common and may be unfamiliar to some readers.
Compound of イカ (squid/cuttlefish) and 舟 (boat), from the boat-like shape of the cuttlebone.