Meaning

noun something with a round shape resembling a flat circular plate

noun a flat circular plate

noun sound recording consisting of a disk with a continuous groove; used to reproduce music by rotating while a phonograph needle tracks in the groove

originFrom Ancient Greek δίσκος (dískos, “a circular plate suited for hurling”), from δικεῖν (dikeîn, “to hurl, to launch”). Doublet of dais, desk, disc, discus, dish, and diskos.

Etymology from Wiktionary, CC BY-SA 3.0