Meaning of “disc” - Learner’s Dictionary

disc

noun [ C ] (also US disk) uk us /dɪsk/
SHAPE

B2 a flat, round shape or object

RECORDING

B1 a CD or DVD

BACK

a piece of cartilage (= strong material in the body) between the bones in your back

→ See also compact disc

(Definition of “disc” from the Cambridge Learner’s Dictionary © Cambridge University Press)