Digital Technology. an online service that supports cloud-based storage of digital music files so as to allow users to stream or download their personal music collections for playback on any compatible device: I uploaded all my CDs to a music locker, and now I can access the music from my laptop, tablet, or smartphone.
Origin of music locker
First recorded in 2005–10
Also called locker.
Dictionary.com Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2019