cuttlebone


cut·tle·bone

C0828800 (kŭt′l-bōn′)n. The calcareous internal shell of a cuttlefish, used as a dietary supplement for cage birds or as a mold for metal casting.
[Middle English cotilbone : codel, cotil, cuttlefish; see cuttlefish + bone, bone; see bone.]

cuttlebone

(ˈkʌtəlˌbəʊn) n (Zoology) the internal calcareous shell of the cuttlefish, used as a mineral supplement to the diet of cage-birds and as a polishing agent

cut•tle•bone

(ˈkʌt lˌboʊn)

n. the calcareous internal shell of cuttlefishes, used to make a polishing powder and as a food and beak conditioner for pet birds. [1805–15]
Translations
jibia