What is a part of a turtle which is attached to the lower shell. It contains a fatty and gelatinous substance of a light yellowish color, much esteemed as a delicacy. Thackeray called?

calipee — A part of a turtle which is attached to the lower shell. It contains a fatty and gelatinous substance of a light yellowish color, much esteemed as a delicacy. Thackeray. (Webster's 1913.)

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