サイリュウム

サイリュウム – sairyumu. Named after Cyalume, an actual brand. Often confused with LED light sticks and has become synonymous with them, but they actually refer to chemical light stickschemlights, or glow sticks. These are intense sources of light that with the most common varieties only lasting around one and a half minutes (depending on the type as some are more intense and last only a handful of seconds before it quickly starts to fade) and they are usually activated during key parts of a song.

There’s a lot to add to this that goes beyond the scope of this glossary but suffice to say, people either love it or hate it but they definitely see it.

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