What is the meaning of Cuttle bone?

The shell or bone of cuttlefishes, used for various purposes, as for making polishing powder, etc.
Webster's Revised Unabridged Dictionary
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APAWebster's. (2011). cuttle bone. Retrieved September 21, 2026, from http://smartdefine.org/cuttle_bone/definitions/1993983
ChicagoWebster's. 2011. "cuttle bone" http://smartdefine.org/cuttle_bone/definitions/1993983 (accessed September 21, 2026).
HarvardWebster's 2011, cuttle bone, Smart Define, viewed 21 September, 2026, <http://smartdefine.org/cuttle_bone/definitions/1993983>.
MLAWebster's. "cuttle bone" 27 May 2011. Web. 21 September 2026. <http://smartdefine.org/cuttle_bone/definitions/1993983>