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English definition of “disk”

disk

noun [C] (also disc)  /dɪsk/ us  
a flat, circular object: The dog’s name is on a metal disk attached to its collar. A disk is also a small piece of cartilage (= strong, elastic body tissue) between the bones of a person’s back. A disk is also a flat, circular device that has a magnetic covering and is used for storing computer information: a hard disk
(Definition of disk from the Cambridge Academic Content Dictionary © Cambridge University Press)
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