by-product

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by-product

Chemical
A product of a chemical reaction or industrial process which differs from the desired product.

Radiation physics
A class of secondary radioactive material regulated by the Nuclear Regulatory Commission.
References in periodicals archive ?
If lasers could enhance drug synthesis, however, yielding large quantities of desired compounds free of unwanted side products, some medications could become safer and cheaper.
Contract award: coffee and side products and making coffee machines.
With Celfrost, Middleby will boast an expanded commercial foodservice product range in India, which will now include complementary cold side products, the CEO noted.
Contract notice: Coffee and side products and making coffee machines.