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

Deep sleep plays a key role in physical recovery, memory processing, and the removal of waste products from the brain.

From Science Daily

However they had gotten there, Spirit Lake was now their home, and their photosynthesis was creating oxygen as a waste product.

From Literature

These spaces help drain toxic waste products, including beta amyloid and tau proteins, which are found in high levels in people with Alzheimer's disease.

From Science Daily

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