Jisho

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Noun
1. by-product
Noun
2. spin-off; outgrowth; side effect; consequence
Wikipedia definition
3. By-productA by-product is a secondary product derived from a manufacturing process or chemical reaction. It is not the primary product or service being produced. A by-product can be useful and marketable or it can be considered waste. IEA offers the following definition for the purpose of life-cycle assessment: ... main products, co-products (which involve similar revenues to the main product), by-products (which result in smaller revenues), and waste products (which provide little or no revenue).
Read “By-product” on English Wikipedia
Read “副産物” on Japanese Wikipedia
Read “By-product” on DBpedia

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