composting

verb

1. (form-of, gerund, participle, present)present participle and gerund of compost

noun

1. (countable, uncountable)Composted material; compost.

   “Because clopyralid is persistent and does not break down during the composting process, grass clippings and other green waste that have been treated with the chemical can contaminate entire compostings, the suit contends.”