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出典:Wiktionary
organic matter (uncountable)
出典:Wikipedia
出典:『Wikipedia』 (2011/05/27 20:14 UTC 版)
Organic matter (or organic material) is matter that has come from a once-living organism; is capable of decay, or the product of decay; or is composed of organic compounds. The definition of organic matter varies upon the subject for which it is being used.
organic matter