Luminal may mean:

• A trade name for the anti-epileptic drug phenobarbital
• Luminal (film), a film by Italian director Andrea Vecchiato starring Denis Lavant.
• In biology, pertaining to the lumen, the interior of a hollow structure
• A misspelling of the chemical luminol, commonly used in forensics
• A trade name of a polyethylene greenhouse cover film with enhanced optical and thermal properties.

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