# Blu-ray Disc

> English word · Noun

## Definitions
1. An optical disc storage medium used for data and video, introduced in 2006, having the same physical dimensions as a CD or DVD but greater storage capacity.

## Etymology
From blue + ray, from the blue laser used to read and write the format, and disc.

## Source
Compiled from Wiktionary via kaikki.org (CC BY-SA). Data vintage: 2026-05-06.
Canonical page: https://plainspell.com/en/word/blu-ray-disc