American English

Definition of Blu-ray noun from the Oxford Advanced American Dictionary

 

Blu-ray

 noun
noun
NAmE//ˈblu reɪ//
 
[uncountable]
 
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technology that uses a blue laser (= a very strong line of light) to record and play large amounts of high quality data on a type of CD These high-definition movies are all out on Blu-ray.
See the Oxford Advanced Learner's Dictionary entry: Blu-ray

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