Definition of compostable in US English:

compostable

adjective

  • See compost

    • ‘There are much better things to do with compostable material.’
    • ‘Nationally we will be increasing the waste going to landfill in direct opposition to the EU requirements to reduce compostable waste going to landfill.’
    • ‘Plans are also afoot to introduce a new green bin scheme, which collects compostable waste, including cardboard.’
    • ‘The ultimate goal is a 100-percent compostable cup.’
    • ‘Councillors also gave a new green bin scheme for collecting compostable waste the go-ahead.’

Pronunciation

compostable

/ˈkämˌpōstəb(ə)l//ˈkɑmˌpoʊstəb(ə)l/