Definition of "compostable" [compostable]

• Suitable for compost. (adjective)
• That which is suitable for compost. (noun)

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• "They are cleverly made out of renewable resources like natural starch and fiber (GM free corn and potato) and come in compostable and heat-sealable packaging, too."
• "Today, 90% of Sainbury's organic fresh produce is available in compostable, recycled or recyclable packaging."
• "Ingeo™ is actually classified as compostable rather than biodegradable in the US."