waste product

American

noun

material discarded as useless in the process of producing something.
feces, urine, and other material excreted in the life process.

waste product Scientific

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

Etymology

Origin of waste product

First recorded in 1930–35

Example Sentences

Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.

Red blood cells are responsible for carrying oxygen and transporting waste products throughout the body, and their ability to flex is critical for moving through narrow blood vessels.

From Science Daily

Other studies have shown the waste products in the fluid are absorbed into the bloodstream surrounding the brain, which eventually takes them to the kidneys and liver—where they’re removed from the body.

From The Wall Street Journal

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

Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023