waste product

American  

noun

1. material discarded as useless in the process of producing something.

2. feces, urine, and other material excreted in the life process.

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waste product Scientific  

1. An unusable or unwanted substance or material produced during or as a result of a process, such as metabolism or manufacturing.

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Etymology

Origin of waste product

First recorded in 1930–35

Example Sentences

Uricase breaks down uric acid, a waste product that routinely forms in the blood.

From Science Daily

The main solid waste product is phosphogypsum, which the plant discharges into the Mediterranean.

From Barron's

Before their transplants, they underwent dialysis - a procedure which removes waste products and excess fluid from the blood when the kidneys stop working.

From BBC

The battery brining liquid is a hazardous waste product too and is trucked to another specialized facility, the agency said.

From Los Angeles Times

"It's a very easy game," said Dr Christian Bickert, a German farmer and editor with experience in biofuels, who believes that much of the HVO made with these waste products is "fake".

From BBC