[ bloo-rey ]
/ ˈbluˌreɪ /


an optical disk or an optical disk format for the storage of high-definition video and audio, having a much larger capacity than a DVD: video games on Blu-ray; Blu-ray movies.
Also called Blu-ray Disc .

Origin of Blu-ray

Blu-, respelling of blue (from the blue-violet laser used to read the disk) + (optical) ray Unabridged Based on the Random House Unabridged Dictionary, © Random House, Inc. 2020

Example sentences from the Web for Blu-ray

British Dictionary definitions for Blu-ray



trademark an optical disk used to store digital information such as high-definition video, and able to store more information than a standard DVD

Word Origin for Blu-ray

C21: from the colour of the laser used to read and write this type of disc
Collins English Dictionary - Complete & Unabridged 2012 Digital Edition © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins Publishers 1998, 2000, 2003, 2005, 2006, 2007, 2009, 2012